Donald J. Volk

Person

Turlock, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Toothbrush holder
- Patent number D745789
- Issue date Dec 22, 2015
- Donald J. Volk
- D06 - Furnishings
Information Patent Grant
Portable toothbrush holder
- Patent number 9,204,761
- Issue date Dec 8, 2015
- Donald J. Volk
- A46 - BRUSHWARE
Information Patent Grant
Off-road hitch assembly
- Patent number 8,408,576
- Issue date Apr 2, 2013
- Don Volk
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Indirect ophthalmoscopy lens retaining ring
- Patent number RE37298
- Issue date Jul 31, 2001
- Volk Optical, Inc.
- Donald A. Volk
- D24 - Medical and laboratory equipment
Information Patent Grant
Indirect ophthalmoscopy lens retaining ring
- Patent number D438621
- Issue date Mar 6, 2001
- Volk Optical, Inc.
- Richard M. Mueller
- D24 - Medical and laboratory equipment
Information Patent Grant
Ophthalmoscopic viewing system
- Patent number 6,164,779
- Issue date Dec 26, 2000
- Volk Optical, Inc.
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy lens straight retaining ring
- Patent number D434851
- Issue date Dec 5, 2000
- Volk Optical, Inc.
- Richard M. Mueller
- D24 - Medical and laboratory equipment
Information Patent Grant
Indirect ophthalmoscopy lens two piece retaining ring
- Patent number D434498
- Issue date Nov 28, 2000
- Volk Optical, Inc.
- Richard M. Mueller
- D24 - Medical and laboratory equipment
Information Patent Grant
Image reinverter for stereo microscope
- Patent number 5,986,801
- Issue date Nov 16, 1999
- Donald A. Volk
- G02 - OPTICS
Information Patent Grant
Lense arrangement for vitreoretinal surgery
- Patent number 5,963,301
- Issue date Oct 5, 1999
- Volk Optical, Inc.
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Microscope attachment
- Patent number 5,886,812
- Issue date Mar 23, 1999
- Volk Optical, Inc.
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Optical component cleaning apparatus
- Patent number 5,857,475
- Issue date Jan 12, 1999
- Volk Optical, Inc.
- Donald A. Volk
- B08 - CLEANING
Information Patent Grant
High magnification indirect ophthalmoscopy lens device
- Patent number 5,805,269
- Issue date Sep 8, 1998
- Volk Optical, Inc.
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy lens system
- Patent number 5,784,147
- Issue date Jul 21, 1998
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy contact lens device with compound contact l...
- Patent number 5,757,464
- Issue date May 26, 1998
- Volk Optical, Inc.
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy device with reinverting lens system with th...
- Patent number 5,745,212
- Issue date Apr 28, 1998
- Volk Optical, Inc.
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Support structure for storing poultry retainers
- Patent number 5,718,624
- Issue date Feb 17, 1998
- Volk Enterprises, Inc.
- Donald J. Volk
- A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH
Information Patent Grant
Indirect ophthalmoscopy lens for use with split lamp or other biomi...
- Patent number 5,706,073
- Issue date Jan 6, 1998
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Tray for poultry trusses
- Patent number 5,558,222
- Issue date Sep 24, 1996
- Donald J. Volk
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Full field reinverting indirect contact ophthalmoscope
- Patent number 5,526,074
- Issue date Jun 11, 1996
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy contact lens device with compound contact l...
- Patent number 5,523,810
- Issue date Jun 4, 1996
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy lens system and adapter lenses
- Patent number 5,479,222
- Issue date Dec 26, 1995
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Illuminated lens case
- Patent number 5,440,458
- Issue date Aug 8, 1995
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy lens providing apparent image curvature
- Patent number 5,436,680
- Issue date Jul 25, 1995
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy lens for use with slit lamp biomicroscope
- Patent number 5,430,506
- Issue date Jul 4, 1995
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Optical device for use with a slit lamp biomicroscope
- Patent number 5,424,789
- Issue date Jun 13, 1995
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy lens retaining ring
- Patent number D357319
- Issue date Apr 11, 1995
- Donald A. Volk
- D24 - Medical and laboratory equipment
Information Patent Grant
Diagnostic or therapeutic contact lens
- Patent number 5,347,326
- Issue date Sep 13, 1994
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Indirect ophthalmoscopy lens for use with slit lamp biomicroscope
- Patent number 5,333,017
- Issue date Jul 26, 1994
- Donald A. Volk
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Clamp for poultry thighs and cartridge for same
- Patent number 5,297,985
- Issue date Mar 29, 1994
- Donald J. Volk
- A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH

Patents Applicationslast 30 patents

Information Patent Application
PORTABLE TOOTHBRUSH HOLDER
- Publication number 20150150420
- Publication date Jun 4, 2015
- Donald J. Volk
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Off-Road Hitch Assembly
- Publication number 20130056957
- Publication date Mar 7, 2013
- Don Volk
- B60 - VEHICLES IN GENERAL
Information Patent Application
PORTABLE TOOTHBRUSH HOLDER
- Publication number 20120318761
- Publication date Dec 20, 2012
- Donald J. Volk
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
DISPOSABLE TOOTHBRUSH HOLDER
- Publication number 20110198454
- Publication date Aug 18, 2011
- Donald J. Volk
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
COLLAPSIBLE DISPOSABLE TOOTHBRUSH HOLDER AND BLANK THEREFOR
- Publication number 20110198453
- Publication date Aug 18, 2011
- Donald J. Volk
- A46 - BRUSHWARE

Donald J. Volk

Person

Patents Grantslast 30 patents

Toothbrush holder

Portable toothbrush holder

Off-road hitch assembly

Indirect ophthalmoscopy lens retaining ring

Indirect ophthalmoscopy lens retaining ring

Ophthalmoscopic viewing system

Indirect ophthalmoscopy lens straight retaining ring

Indirect ophthalmoscopy lens two piece retaining ring

Image reinverter for stereo microscope

Lense arrangement for vitreoretinal surgery

Microscope attachment

Optical component cleaning apparatus

High magnification indirect ophthalmoscopy lens device

Indirect ophthalmoscopy lens system

Indirect ophthalmoscopy contact lens device with compound contact l...

Indirect ophthalmoscopy device with reinverting lens system with th...

Support structure for storing poultry retainers

Indirect ophthalmoscopy lens for use with split lamp or other biomi...

Tray for poultry trusses

Full field reinverting indirect contact ophthalmoscope

Indirect ophthalmoscopy contact lens device with compound contact l...

Indirect ophthalmoscopy lens system and adapter lenses

Illuminated lens case

Indirect ophthalmoscopy lens providing apparent image curvature

Indirect ophthalmoscopy lens for use with slit lamp biomicroscope

Optical device for use with a slit lamp biomicroscope

Indirect ophthalmoscopy lens retaining ring

Diagnostic or therapeutic contact lens

Indirect ophthalmoscopy lens for use with slit lamp biomicroscope

Clamp for poultry thighs and cartridge for same

Patents Applicationslast 30 patents

PORTABLE TOOTHBRUSH HOLDER

Off-Road Hitch Assembly

PORTABLE TOOTHBRUSH HOLDER

DISPOSABLE TOOTHBRUSH HOLDER

COLLAPSIBLE DISPOSABLE TOOTHBRUSH HOLDER AND BLANK THEREFOR