Patent Grant
11268684
This application relates to the field of nightlights, and more specifically to dimmable tamper-resistant nightlights.
Nightlights are small light fixtures, usually electrical, placed for comfort or convenience in dark areas or areas that may become dark at certain times, such as at night or in an emergency. Nightlights are sometimes battery powered, and sometimes have a cord that allows them to be plugged into an electrical receptacle at an electrical outlet while being positioned away from the electrical receptacle. Nightlights are sometimes plugged into an electrical receptacle without an electrical cord, providing light at the location of, or in proximity to, the electrical outlet.
According to an aspect of the disclosure, dimmable a tamper resistant nightlight may include a body comprising at least one light emitting diode (LED). Plug blades may extend from the body and be configured to electrically couple an electrical receptacle to the at least one LED. A dimming switch may be coupled to the at last one LED, the dimming switch configured to move between a first position that activates about 50% luminosity of the at least one LED, a second position that deactivates about 100% luminosity of the at least one LED, and a third position that activates about 100% luminosity of the at least one LED. A housing may be coupled to the body, the housing comprising an access opening through which the dimming switch may be moved among the first position, the second position, and the third position. A locking element may be configured to be positioned behind a rear surface of an electrical wall plate associated with the electrical receptacle to prevent the dimmable tamper resistant nightlight from being removed from the electrical receptacle while the electrical wall plate is coupled to the electrical receptacle.
Particular embodiments may comprise the housing comprising a translucent material that is disposed over a front of the at least one LED, and the body is configured to contact, and be adjacent to, a face of the electrical receptacle. The housing may be disposed over a side of the body and may not be disposed over a front of the at least one LED. The body may be configured to directly contact, and be adjacent to, a face of the electrical receptacle. The housing may be coupled to the body with a keyhole connector, the housing comprising slots through which the plug blades may extend when the housing is disposed between the electrical receptacle and the body. The body may comprise a low profile body in which a thickness of the body (as measured in a direction the prongs extend away from the body) comprises a distance less than or equal to a width of the body as measured in a direction perpendicular to the thickness. A footprint of the body may be less than a footprint of the electrical receptacle, such that the footprint of the body is contained completely within the footprint of the electrical receptacle (when viewed in a direction the prongs extend away from the body. The cover and the housing may be formed as a single piece.
According to an aspect of the disclosure, a dimmable tamper resistant nightlight may comprise a body comprising at least one light. Plug blades extending from the body and configured to be electrically coupled to the at least one light. A dimming switch coupled to the at least one light, the dimming switch configured to activate greater luminosity of the at least one light at a first setting, and a second setting that activates less luminosity of the at least one light. A housing coupled to the body, the housing comprising an access at which the dimming switch may engage the first setting and the second setting, and a locking element configured to couple with an electrical wall plate and restrict the dimmable tamper resistant nightlight from being removed while the electrical wall plate is in place.
Particular embodiments may comprise one or more of the following features. The locking element may be configured as a flange that extends away from the body such that a distal edge of the flange is configured to be positioned behind a rear surface of the electrical wall plate to prevent the tamper resistant nightlight from being removed from an electrical receptacle while the electrical wall plate is coupled to the electrical receptacle. The cover and the housing may be formed as a single piece. The first position of the dimming switch may activates about 50% luminosity of the at least one light, the second position of the dimming switch may deactivates all luminosity of the at least one light, and a third position of the dimming switch may activate about 100% luminosity of the LED. The body may comprise a low profile body in which a thickness of the body (as measured in a direction the prongs extend away from the body) comprises a distance less than or equal to a width of the body as measured in a direction perpendicular to the thickness. The housing may be coupled to the body with a keyhole connector, the housing comprising slots through which the plug blades may extend when the housing is disposed between an electrical receptacle and the body.
According to an aspect of the disclosure, a tamper resistant nightlight may comprise a body comprising a light. A dimming switch may be coupled to light, the dimming switch configured to activate greater luminosity of the light at a first position, and a second position that activates less luminosity of the light. A housing may be coupled to the body, the housing comprising an access at which the dimming switch may be moved between the at least first position and the second position, and a locking element configured to couple with an electrical wall plate and restrict the dimmable tamper resistant nightlight from being removed while the electrical wall plate is in place.
Particular embodiments may comprise one or more of the following features. The locking element may be configured as a flange that extends away from the body such that a distal edge of the flange is configured to be positioned behind a rear surface of the electrical wall plate to prevent the tamper resistant nightlight from being removed from an electrical receptacle while the electrical wall plate being coupled to the electrical receptacle. The body and the housing may be formed as a single piece. The first position of the dimming switch may activate less than full luminosity of the light, the second position of the dimming switch deactivating all luminosity of the light, and a third position of the dimming switch activates about 100% luminosity of the light. Plug blades may extend from the body and be configured to electrically couple to the light with contacts within an electrical receptacle. The housing may be coupled to the body with a keyhole connector, the housing comprising slots through which the plug blades may extend when the housing is disposed between an electrical receptacle and the body. A footprint of the body may be less than a footprint of an electrical receptacle, such that the footprint of the body may be contained completely within the footprint of the electrical receptacle (when viewed in a direction the prongs extend away from the body.
The foregoing and other aspects, features, applications, and advantages will be apparent to those of ordinary skill in the art from the specification, drawings, and the claims. Unless specifically noted, it is intended that the words and phrases in the specification and the claims be given their plain, ordinary, and accustomed meaning to those of ordinary skill in the applicable arts. The inventors are fully aware that he can be his own lexicographer if desired. The inventors expressly elect, as their own lexicographers, to use only the plain and ordinary meaning of terms in the specification and claims unless they clearly state otherwise and then further, expressly set forth the “special” definition of that term and explain how it differs from the plain and ordinary meaning. Absent such clear statements of intent to apply a “special” definition, it is the inventors' intent and desire that the simple, plain and ordinary meaning to the terms be applied to the interpretation of the specification and claims.
The inventors are also aware of the normal precepts of English grammar. Thus, if a noun, term, or phrase is intended to be further characterized, specified, or narrowed in some way, then such noun, term, or phrase will expressly include additional adjectives, descriptive terms, or other modifiers in accordance with the normal precepts of English grammar. Absent the use of such adjectives, descriptive terms, or modifiers, it is the intent that such nouns, terms, or phrases be given their plain, and ordinary English meaning to those skilled in the applicable arts as set forth above.
Further, the inventors are fully informed of the standards and application of the special provisions of 35 U.S.C. § 112(f). Thus, the use of the words “function,” “means” or “step” in the Detailed Description or Description of the Drawings or claims is not intended to somehow indicate a desire to invoke the special provisions of 35 U.S.C. § 112(f), to define the invention. To the contrary, if the provisions of 35 U.S.C. § 112(f) are sought to be invoked to define the inventions, the claims will specifically and expressly state the exact phrases “means for” or “step for”, and will also recite the word “function” (i.e., will state “means for performing the function of [insert function]”), without also reciting in such phrases any structure, material or act in support of the function. Thus, even when the claims recite a “means for performing the function of . . . ” or “step for performing the function of . . . ,” if the claims also recite any structure, material or acts in support of that means or step, or that perform the recited function, then it is the clear intention of the inventors not to invoke the provisions of 35 U.S.C. § 112(f). Moreover, even if the provisions of 35 U.S.C. § 112(f) are invoked to define the claimed aspects, it is intended that these aspects not be limited only to the specific structure, material or acts that are described in the preferred embodiments, but in addition, include any and all structures, materials or acts that perform the claimed function as described in alternative embodiments or forms of the disclosure, or that are well known present or later-developed, equivalent structures, material or acts for performing the claimed function.
The foregoing and other aspects, features, and advantages will be apparent to those of ordinary skill in the art from the specification, drawings, and the claims.
Implementations will hereinafter be described in conjunction with the appended drawings, where like designations denote like elements, and:
This disclosure, its aspects and implementations, are not limited to the specific material types, components, methods, or other examples disclosed herein. Many additional material types, components, methods, and procedures known in the art are contemplated for use with particular implementations from this disclosure. Accordingly, for example, although particular implementations are disclosed, such implementations and implementing components may comprise any components, models, types, materials, versions, quantities, and/or the like as is known in the art for such systems and implementing components, consistent with the intended operation.
The word “exemplary,” “example,” or various forms thereof are used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” or as an “example” is not necessarily to be construed as preferred or advantageous over other aspects or designs. Furthermore, examples are provided solely for purposes of clarity and understanding and are not meant to limit or restrict the disclosed subject matter or relevant portions of this disclosure in any manner. It is to be appreciated that a myriad of additional or alternate examples of varying scope could have been presented, but have been omitted for purposes of brevity.
While this disclosure includes a number of implementations in many different forms, there is shown in the drawings and will herein be described in detail particular implementations with the understanding that the present disclosure is to be considered as an exemplification of the principles of the disclosed methods and systems, and is not intended to limit the broad aspect of the disclosed concepts to the implementations illustrated.
The present disclosure concerns a dimmable tamper-resistant night light. This tamper-resistant night light provides a night light which is trapped by the electrical wall plate to restrict a person, such as a child, from unplugging the nightlight. A variety of different implementations of the dimmable tamper-resistant night light are discussed below. Generally, these implementations may comprise a night light and a locking element. It should be understood that the components depicted and discussed are non-limiting examples, and that the contemplated components may be combined with any of the other components in other implementations.
The wall plate 10 may be made by, with, or involve 3-D printing, extrusion, pultrusion, vacuum forming, injection molding, blow molding, resin transfer molding, casting, forging, cold rolling, milling, drilling, reaming, turning, grinding, stamping, cutting, carving, bending, welding, soldering, hardening, riveting, punching, plating, and/or the like. The wall plate 10 may be a standard off the shelf wall plate, as well as a custom plate, the tamper resistant nightlight being compatible with both.
In some instances, the dimming switch 110 may extend through the opening 100 by extending through both an opening 100a in the nightlight housing 60 and through an opening 100b in the nightlight body 70, so as to be visible and accessible to a user at a surface of the tamper resistant nightlight 50, as shown in
In any event, the dimming switch 110 may extend no higher, or no farther, than the nightlight housing 60 or the nightlight body 70 (or an outer surface thereof) so as to fit through the receptacle opening 16 through the wall plate 10 during installation of the tamper resistant nightlight 50, as described, for example, with respect to
The dimming switch 110 can control luminosity of the light 76 by selecting among positions that include spatially separated physical locations or positions. For example, when the dimming switch 110 is configured as a slider, the user can push or position the slider through different settings by physically or spatially moving the slider to adjust to different settings or levels of luminosity.
On the other hand, the dimming switch 110 can control luminosity of the light 76 while disposed at a same physical location or spatial position with respect to the nightlight housing 60 or the nightlight body 70, and while engaging or activating a different setting. For example, when the dimming switch 110 is configured as a plunger or push button, the user can click through different settings by moving then releasing (such as by depressing, pulling, or pushing) the plunger or push button and then afterwards releasing the plunger or push button such that the dimming switch 110 returns to its original or same physical or spatial location even during different settings or levels of luminosity of the light 76. An example of the above is shown, e.g., in
While various arrangements of housings 60 are shown with various different arrangements of dimming switches 110, in the interest of brevity, not every variation, combination, or permutation of the various housings 60 with the various dimming switches 110 are shown. However, a person of ordinary skill in the art will appreciate and understand that any of the housings 60 shown and described may be used with any of the dimming switches 110 shown and described.
In some instances, the dimming switch 110 may be coupled to the at least one light 76, the dimming switch 110 configured to activate greater luminosity of the at least one light 76 at a first setting 112, 116, and a second setting 114 that activates less luminosity of the at least one light 76. In other instances, the dimming switch 110 may be coupled to the LED 76, the dimming switch 110 configured to move between a first position 112 that activates about 50% luminosity of the LED 76, a second position 114 that deactivates all luminosity of the LED 76, and a third position 116 that activates 100% luminosity of the LED 76. The second position 114 may be disposed between the first position 112 and the third position 116, as shown in
As used herein “about” means a value less than or equal to a percent difference of plus or minus 20%, if not otherwise stated, and may also be a value less than or equal to a percent difference of plus or minus 15%, 10%, 5%, or 1% of the stated value is so specified.
The housing 60 may be coupled to the body 70, the housing 60 comprising a locking element 62 configured to restrict a child (including a toddler) from removing the nightlight 50, which may lead to the nightlight 70 being lost, misplaced, broken, or unavailable to provide light when desired. Unwanted removal of the nightlight 50 by a child may also expose the openings 34 in the receptacle face 32 to the child, introducing an opportunity for a child to place foreign or unwanted objects within the openings 34 of the receptacle 30, thereby creating an increased safety risk. The locking element 61 may be configured as a flange, lip, tab, ridge, or protrusion 62 that extends away from the body 70 such that a distal edge 63 of the flange 62 is configured to be positioned behind a rear surface 18 of a wall plate 10 to prevent the tamper resistant nightlight 50n from being removed from the receptacle 30 while the wall plate 10 is coupled to the receptacle 30. Because the wall plate 10 will usually be coupled to the receptacle 32 with a threaded fastener through opening 14, the nightlight 50 will be more difficult to remove than a conventional friction fit or press fit nightlight. Rather than simply pulling on the nightlight 50 so that the blades 80 are pulled from openings 34 of the receptacle 32, the wall plate 10 will first need to be removed, such as with a screwdriver, which prevents a significant barrier for a child to remove the nightlight 50 from the receptacle 30.
The body 70, and particularly the base 72 and the cover 78 of the body, as well as the housing 60, may be formed entirely or partially of rubbers (synthetic and/or natural) and/or other like materials, glasses (such as fiberglass), carbon-fiber, aramid-fiber, any combination therefore, and/or other like materials; elastomers and/or other like materials, polymers such as thermoplastics (such as ABS, fluoropolymers, polyacetal, polyamide, polycarbonate, polyethylene, polysulfone, and/or the like, thermosets (such as epoxy, phenolic resin, polyimide, polyurethane, and/or the like), and/or other like materials, plastics and/or other like materials, composites and/or other like materials; metals, such as zinc, magnesium, titanium, copper, iron, steel, carbon steel, alloy steel, tool steel, stainless steel, spring steel, aluminum, and/or other like materials, ceramic, stone, wood, cellulose, or other natural materials, and/or any combination or composite of the foregoing. The housing 60 and the body 70 may be formed by, made by, made with, or involve 3-D printing, extrusion, pultrusion, vacuum forming, injection molding, blow molding, resin transfer molding, casting, forging, cold rolling, milling, drilling, reaming, turning, grinding, stamping, cutting, carving, bending, welding, soldering, hardening, riveting, punching, plating, and/or the like.
Because the locking element 60 in the implementation shown in
As noted above,
The nightlight 50 may be installed by first coupling the body 70 to the receptacle 30 by inserting the prongs or plug blades 80 into the openings 34 of the receptacle 30. The housing 60 may then be disposed over the body 70, after which the wall plate may be coupled to the receptacle 30, electrical outlet 40, or both, by inserting a fastener, threaded fastener, or screw through the screw opening 14 so that the body 50 and housing 60 are disposed (or sandwiched) between the wall plate 10 and the receptacle 30, and held in place. The dimming switch 110 may be accessed with the cover plate 10 attached to the receptacle 30. So arranged, the body 70, and an entirety of the nightlight 50, may be disposed (or configured to be disposed) over the face 32 of the electrical receptacle 30. In some instances, an area or footprint of the nightlight 50 is equal, or about equal, to a footprint of the face 32 of the electrical receptacle 30.
The housing 60, the body 70 (including the base 72), or both the housing 60 and the body 70 together, may comprise a low profile in which a thickness T (as measured in a direction the prongs 80 extend away from the base 72) comprises a distance less than or equal to a width W of the base, the width W being a distance measured in a direction perpendicular to the thickness T. In some instances, the thickness T is less than or equal to, or about, one-third (33%), or one-fourth (25%) of the width W.
Nightlight 51 differs from nightlight 50 by further comprising a second or front flange, lip, tab, ridge, or protrusion 65 that is disposed away from, or opposite, the first flange 62. In some instances, the flange 65 may extend to the cover 78 of the body 70 without being disposed over an entirety of the cover 78 of the body 70. In some instances, the housing 60 may contact or cover an entire side of the body 70, and may contact, cover, or be disposed over only a portion or no part of the cover 78 of the body 70, unlike the nightlight 50 shown in
Nightlight 51 also differs from nightlight 50 by comprising the dimming switch 110 formed as a push button or plunger.
also illustrate an instance in which the dimming switch 110 may comprise a slider, touch screen, or touch pad with which one end of the slider may correspond with a maximum brightness, and the opposite end may correspond with a minimum brightness. As the adjustable slider moves (or a finger moves along the touch screen or touch pad toward the end of maximum brightness, the light 72 may gradually get brighter until the slider or finger reaches the end and the light 72 reaches the maximum brightness. As the adjustable slider moves toward the end of minimum brightness, the light 72 may gradually get dimmer until the slider or finger reaches the end and the light 72 reaches the minimum brightness, which may be where no light is emitted, or may be a different level of brightness.
As illustrated more specifically in
Coupling of the nightlight body 70 to the wall plate 40 may occur with the housing 60 coupled to the wall plate 10 with locking element 61, and the nightlight body 70 being coupled to the housing 60 when the one or more knobs 66a on the nightlight body 70 interlock with slots 66b on the housing 60. However, the housing 60 and nightlight body 70 may be removably coupled in another manner with other suitable connectors 66. Further, and as noted above with respect to the previous FIGs., the locking element 61 may have a lip 62 around its edge which, when installed with the electrical outlet 40, sits behind the wall plate 10 and makes it difficult to tamper with or remove the housing 60 without also removing the wall plate 10. When the additional keyhole connectors 66 are included with the housing 60 disposed between the base 72 or body 70 and the receptacle 30 or receptacle face 32, the nightlight body 70 may be removed without removing the wall plate 10, by uncoupling the nightlight body 70 from the housing 60 while leaving the housing 60 coupled to the wall plate 10. Because the wall plate 10 comprises openings 67 for plug blades 80, the receptacle 30 can still be used even when the housing is coupled to the wall plate 10 and the nightlight body 70 has been removed. Additionally, when the nightlight body 70 is on and electrically coupled to the receptacle 30, the keyhole connectors 66 help prevent children from removing the nightlight body 70, and undesirably exposing the openings 34 of the receptacle 30.
The implementations of the tamper-resistant nightlights 50, 51, 52, and 53 described herein are configured for a typical wall outlet 40 that utilizes a wall plate 10. However, other implementations are also intended within this disclosure. For example, the locking element 61 may be configured for ground-fault circuit interrupter (GFCI) outlets or decorator devices as well. The implementations which have a nightlight that is separable from the locking element may be used in any electrical device because the locking element may be set aside during use. In addition, tamper-resistant nightlight implementations may include a dusk-to-dawn photosensor 98 and photosensor circuit, as well as a selector switch 90 as discussed below, and as disclosed in U.S. Provisional Patent Application 62/795,805, the disclosure of which is incorporated by reference.
The nightlight body 70 may advantageously be made with a small profile, making it difficult for a child to grip and therefore remove from the receptacle 30. The footprint or area of the nightlight body 70 may be small, and fit or be contained within the footprint or area of the face 32 of the receptacle 30. As such, a housing 60 and a locking element 61 may be coupled to the nightlight body 70, allowing the locking element 61 to be configured as a flange, lip, tab, ridge, or protrusion 62 that may comprise a thickness in a range of 0.5 millimeters-4 millimeters (mm) and be disposed in a gap or space between the wall plate 10 and the receptacle face 32, such as along the edge or perimeter 13 of the opening 12. While the selector switch 90 is shown on the rear or back surface of the nightlight body 70, the selector switch may be positioned or disposed on any suitable surface, including on a side or other surface.
As such, the various views of a nightlight body 70 comprising a dimmable switch 110 coupled to light or LED 72 and circuits within the body 70 show prongs 80 extending away from a base or back cover 72 of the body 70. The dimmable switch 110 may be coupled to light or LED 72 and circuits. The dimmable switch 110 may be at a level equal to or lower than an outer edge or surface 71 or body 70, so as to not come in contact with the wall plate 10 when being coupled to the receptacle 30. As such, the dimmer switch 10 will pass through the receptacle opening 12 in the wall plate 10 when the wall plate 10 is coupled to the receptacle 30 after the nightlight 50-54 (inducing housing 60 and body 70) are coupled to the receptacle 30.
The dimming switch 110 may be in a desired position, such as in the first position 112, the second position 114, and the third position 116. When the dimming switch 110 is in the first position 112 the light 72 may be at about 50% illumination. When the dimming switch 110 is at the second position 114, the light 72 may be at about 0% illumination, or turned off. When the dimming switch 110 is in the third position 116, the light 72 may be at about 100%, or full, illumination.
It will be understood that implementations of this dimmable tamper-resistant night light are not limited to the specific components disclosed herein, as virtually any components consistent with the intended operation of various dimmable tamper-resistant night lights may be utilized. Accordingly, for example, it should be understood that, while the drawings and accompanying text show and describe particular dimmable tamper-resistant night light implementations, any such implementation may comprise any shape, size, style, type, model, version, class, grade, measurement, concentration, material, weight, quantity, and/or the like consistent with the intended operation of dimmable tamper-resistant night lights.
The concepts disclosed herein are not limited to the specific dimmable tamper-resistant night lights shown herein. For example, it is specifically contemplated that the components included in particular dimmable tamper-resistant night lights may be formed of any of many different types of materials or combinations that can readily be formed into shaped objects and that are consistent with the intended operation of the dimmable tamper-resistant night light. For example, the components may be formed of: rubbers (synthetic and/or natural) and/or other like materials; glasses (such as fiberglass), carbon-fiber, aramid-fiber, any combination therefore, and/or other like materials; elastomers and/or other like materials; polymers such as thermoplastics (such as ABS, fluoropolymers, polyacetal, polyamide, polycarbonate, polyethylene, polysulfone, and/or the like, thermosets (such as epoxy, phenolic resin, polyimide, polyurethane, and/or the like), and/or other like materials; plastics and/or other like materials; composites and/or other like materials; metals, such as zinc, magnesium, titanium, copper, iron, steel, carbon steel, alloy steel, tool steel, stainless steel, spring steel, aluminum, and/or other like materials; and/or any combination of the foregoing.
Furthermore, dimmable tamper-resistant night lights may be manufactured separately and then assembled together, or any or all of the components may be manufactured simultaneously and integrally joined with one another. Manufacture of these components separately or simultaneously, as understood by those of ordinary skill in the art, may involve 3-D printing, extrusion, pultrusion, vacuum forming, injection molding, blow molding, resin transfer molding, casting, forging, cold rolling, milling, drilling, reaming, turning, grinding, stamping, cutting, bending, welding, soldering, hardening, riveting, punching, plating, and/or the like. If any of the components are manufactured separately, they may then be coupled or removably coupled with one another in any manner, such as with adhesive, a weld, a fastener, any combination thereof, and/or the like for example, depending on, among other considerations, the particular material(s) forming the components.
In places where the description above refers to particular dimmable tamper-resistant night light implementations, it should be readily apparent that a number of modifications may be made without departing from the spirit thereof and that these implementations may be applied to other implementations disclosed or undisclosed. The presently disclosed dimmable tamper-resistant night lights are, therefore, to be considered in all respects as illustrative and not restrictive.
This application is a continuation of U.S. patent application Ser. No. 16/850,975 to Jeffrey P. Baldwin and John E. Klein titled “Dimmable Tamper-Resistant Nightlight” filed Apr. 16, 2020, now pending, which application claims the benefit, including the filing date, of U.S. provisional patent application No. 62/834,925 to Jeffrey P. Baldwin and John E. Klein titled “Lighted Electrical Device Plate with Dimmer Switch” filed Apr. 16, 2019, and U.S. patent application Ser. No. 16/850,975 is also a continuation-in-part of U.S. patent application Ser. No. 16/750,956 to Jeffrey P. Baldwin and John E. Klein titled “Tamper Resistant Nightlight” filed Jan. 23, 2020, now pending, which claims the benefit of the filing date of U.S. provisional patent application No. 62/795,805 to Jeffrey P. Baldwin and John E. Klein titled “Safety Nightlight” filed Jan. 23, 2019, and also claims the benefit of the filing date of U.S. provisional patent application No. 62/820,356 to Jeffrey P. Baldwin and John E. Klein titled “Tamper Resistant Nightlight” filed on Mar. 19, 2019, the disclosures of each of which are hereby incorporated herein by this reference.
| Number | Name | Date | Kind |
|---|---|---|---|
| 4484185 | Graves | Nov 1984 | A |
| 4546419 | Johnson | Oct 1985 | A |
| Number | Date | Country | |
|---|---|---|---|
| 62795805 | Jan 2019 | US | |
| 62820356 | Mar 2019 | US | |
| 62834925 | Apr 2019 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 16850975 | Apr 2020 | US |
| Child | 17203658 | US | |
| Parent | 16750956 | Jan 2020 | US |
| Child | 16850975 | US |
