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Patents Grants
last 30 patents
Information
Patent Grant
Control assembly for use with an electric power tool
Patent number
11,975,434
Issue date
May 7, 2024
DEFOND ELECTECH CO., LTD
Wai Man Wong
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Control assembly for use in operation of an electric device
Patent number
11,913,812
Issue date
Feb 27, 2024
DEFOND ELECTECH CO., LTD
Cheng Chen Nieh
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Control knob with motion sensing for controlling operation of a mac...
Patent number
11,907,449
Issue date
Feb 20, 2024
DEFOND ELECTECH CO., LTD
Cheng Chen Nieh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Contact lever assembly for use with an electrical switch
Patent number
11,823,856
Issue date
Nov 21, 2023
Defond Components Limited
Kin Yu Wong
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lock-off mechanism for locking-off a trigger assembly of an electri...
Patent number
11,694,862
Issue date
Jul 4, 2023
DEFOND ELECTECH CO., LTD
Wai Man Wong
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Variable-speed control assembly for an electric device
Patent number
11,664,710
Issue date
May 30, 2023
DEFOND COMPONENTS LIMITED
Wai Man Wong
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control assembly for use in operation of an electric device
Patent number
11,623,335
Issue date
Apr 11, 2023
Defond Components Limited
Wai Man Wong
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Touch control human machine interface
Patent number
11,489,523
Issue date
Nov 1, 2022
DEFOND ELECTECH CO., LTD
Cheng Chen Nieh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Touch LED component
Patent number
D965536
Issue date
Oct 4, 2022
Defond Electech Co., Ltd.
Lei Zhang
D13 - Equipment for production, distribution, or transformation of energy
Information
Patent Grant
Touch LED component and touch device
Patent number
11,464,112
Issue date
Oct 4, 2022
Defond Electech Co., Ltd.
Lei Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Control system for use in controlling operation of an electrical ap...
Patent number
11,431,172
Issue date
Aug 30, 2022
DEFOND ELECTECH CO., LTD
Cheng Chen Nieh
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Locking system for use with a trigger assembly of an electrical device
Patent number
11,367,577
Issue date
Jun 21, 2022
DEFOND ELECTECH CO., LTD
Kin Yu Wong
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Snap-action switch and method of assembling same
Patent number
11,257,639
Issue date
Feb 22, 2022
Defond Electech Co., Ltd.
Kin Yu Wong
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Control stick
Patent number
11,112,817
Issue date
Sep 7, 2021
Defond Electech Co., Ltd.
Ka Him Leung
G05 - CONTROLLING REGULATING
Information
Patent Grant
Rotary bridge micro-switch
Patent number
11,011,327
Issue date
May 18, 2021
DEFOND ELECTECH CO., LTD.
Bang Yan Yang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lock-off assembly for use in locking-off a trigger of an electrical...
Patent number
10,978,257
Issue date
Apr 13, 2021
DEFOND COMPONENTS LIMITED
Cheng Chen Nieh
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Detection circuit module for use in detecting an operational status...
Patent number
10,964,499
Issue date
Mar 30, 2021
DEFOND ELECTECH CO., LTD
Chiu Keung Loong
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Battery pack system for electrically connecting a battery pack to a...
Patent number
10,965,133
Issue date
Mar 30, 2021
DEFOND ELECTECH CO., LTD
Tak Chuen Or
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Trigger assembly with a protective covering
Patent number
10,892,122
Issue date
Jan 12, 2021
DEFOND ELECTECH CO., LTD
Lap Yi Law
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Control system and device for use in controlling operation of an el...
Patent number
10,852,854
Issue date
Dec 1, 2020
DEFOND ELECTECH CO., LTD
Cheng Chen Nieh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Brushless DC motor control unit
Patent number
10,848,084
Issue date
Nov 24, 2020
DEFOND ELECTECH CO., LTD
Cheng Chen Nieh
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Control knob for controlling operation of a machine
Patent number
10,838,525
Issue date
Nov 17, 2020
Defond Components Limited
Wai Cheong Wilson Chu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Warning device and system
Patent number
10,777,073
Issue date
Sep 15, 2020
Defond Electech Co., Ltd.
Massimo Fontanili
G08 - SIGNALLING
Information
Patent Grant
Locking system for use with a trigger assembly of an electrical device
Patent number
10,685,795
Issue date
Jun 16, 2020
DEFOND ELECTECH CO. LTD
Kin Yu Wong
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Control knob for controlling operation of a machine
Patent number
10,649,556
Issue date
May 12, 2020
Dongguan Chen Da Appliance Co. Ltd.
Wai Cheong Wilson Chu
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Transducer device
Patent number
10,591,949
Issue date
Mar 17, 2020
Defond Components Limited
Cheng Chen Nieh
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Variable-speed controller for use with an electric device
Patent number
10,547,257
Issue date
Jan 28, 2020
Defond Electech Co., Ltd.
Ming Leong Kong
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lockable trigger mechanism for use in an electrical device
Patent number
10,529,502
Issue date
Jan 7, 2020
Defond Components Limited
Ho Cheung Lau
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrical switch for an electrical device and sealing assembly for...
Patent number
10,497,523
Issue date
Dec 3, 2019
Defond Electech Co., Ltd.
Kin Yu Wong
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Waterproof toggle switch
Patent number
10,283,291
Issue date
May 7, 2019
DEFOND ELECTECH CO., LTD
Kai Kei Poon
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
CONTROL ASSEMBLY FOR USE IN OPERATION OF AN ELECTRIC DEVICE
Publication number
20230219207
Publication date
Jul 13, 2023
Defond Electech Co., Ltd.
Wai Man Wong
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
CONTROL ASSEMBLY FOR USE IN OPERATION OF AN ELECTRIC DEVICE
Publication number
20220397426
Publication date
Dec 15, 2022
Defond Electech Co., Ltd
Cheng Chen NIEH
G01 - MEASURING TESTING
Information
Patent Application
COOLING SYSTEM FOR COOLING AN ELECTRONICS COMPONENT OF AN ELECTRICA...
Publication number
20220053665
Publication date
Feb 17, 2022
DEFOND ELECTECH CO. LTD
Tak Chuen Or
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SYSTEM AND METHOD FOR CONTROLLING OPERATION OF AN ELECTRIC DEVICE
Publication number
20210383680
Publication date
Dec 9, 2021
Defond Electech Co., Ltd.
Cheng Chen Nieh
G08 - SIGNALLING
Information
Patent Application
CONTACT LEVER ASSEMBLY FOR USE WITH AN ELECTRICAL SWITCH
Publication number
20210183604
Publication date
Jun 17, 2021
Defond Electech Co., Ltd.
Kin Yu WONG
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ELECTRICAL SWITCH WITH A SEALING MEMBER FOR USE WITH AN ELECTRICAL...
Publication number
20210183589
Publication date
Jun 17, 2021
Defond Electech Co., Ltd.
Wai Man WONG
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LOCK-OFF MECHANISM FOR LOCKING-OFF A TRIGGER ASSEMBLY OF AN ELECTRI...
Publication number
20210142966
Publication date
May 13, 2021
Defond Electech Co., Ltd.
Wai Man Wong
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
VARIABLE-SPEED CONTROL ASSEMBLY FOR AN ELECTRIC DEVICE
Publication number
20210111611
Publication date
Apr 15, 2021
Defond Electech Co., Ltd
Wai Man WONG
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
FOOD PROCESSOR WITH PULSING MODE MODULE
Publication number
20210059474
Publication date
Mar 4, 2021
Defond Electech Co., Ltd
Ting Yu KWAN
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
SEPARABLE EVACUATION DEVICE
Publication number
20210053710
Publication date
Feb 25, 2021
Defond Electech Co., Ltd
Nieh Cheng CHEN
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
Touch LED Component and Touch Device
Publication number
20210037650
Publication date
Feb 4, 2021
Defond Electech Co., Ltd.
Lei Zhang
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
BRUSHLESS DC MOTOR CONTROL UNIT
Publication number
20210036637
Publication date
Feb 4, 2021
Defond Electech Co., Ltd
Cheng Chen NIEH
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
CONTROL ASSEMBLY FOR USE WITH AN ELECTRIC POWER TOOL
Publication number
20210016427
Publication date
Jan 21, 2021
Defond Electech Co., Ltd.
Wai Man Wong
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
LOCK-OFF ASSEMBLY FOR USE IN LOCKING-OFF A TRIGGER OF AN ELECTRICAL...
Publication number
20210012980
Publication date
Jan 14, 2021
Defond Electech Co., Ltd.
Cheng Chen NIEH
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Control Stick
Publication number
20200379502
Publication date
Dec 3, 2020
Defond Electech Co., Ltd.
Ka Him Leung
G05 - CONTROLLING REGULATING
Information
Patent Application
TRIGGER ASSEMBLY WITH A PROTECTIVE COVERING
Publication number
20200343059
Publication date
Oct 29, 2020
Defond Electech Co., Ltd.
Lap Yi Law
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Rocker Switch
Publication number
20200335292
Publication date
Oct 22, 2020
Defond Electech Co., Ltd.
Xiao Yu Lai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Wireless Charging Device with Detachable Base
Publication number
20200328606
Publication date
Oct 15, 2020
Defond Electech Co., Ltd.
Cheng Chen Nieh
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Rotary Bridge Micro-Switch
Publication number
20200312587
Publication date
Oct 1, 2020
Defond Electech Co., Ltd
Bang Yan Yang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
CONTROL KNOB WITH MOTION SENSING FOR CONTROLLING OPERATION OF A MAC...
Publication number
20200272247
Publication date
Aug 27, 2020
Defond Electech Co., Ltd
Cheng Chen NIEH
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TOUCH CONTROL HUMAN MACHINE INTERFACE
Publication number
20200228118
Publication date
Jul 16, 2020
Defond Electech Co., Ltd.
CHENG CHEN NIEH
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Locking System for Use with a Trigger Assembly of An Electrical Device
Publication number
20200219675
Publication date
Jul 9, 2020
Defond Electech Co., Ltd.
Kin Yu Wong
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
CONTROL KNOB FOR CONTROLLING OPERATION OF A MACHINE
Publication number
20200192494
Publication date
Jun 18, 2020
Defond Electech Co., Ltd.
Wai Cheong Wilson CHU
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SNAP-ACTION SWITCH AND METHOD OF ASSEMBLING SAME
Publication number
20200185167
Publication date
Jun 11, 2020
Defond Electech Co., Ltd
Kin Yu WONG
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
CONTROL KNOB FOR CONTROLLING OPERATION OF A MACHINE
Publication number
20200150786
Publication date
May 14, 2020
DONGGUAN CHEN DA APPLIANCE CO. LTD
Wai Cheong Wilson CHU
B60 - VEHICLES IN GENERAL
Information
Patent Application
CONTROL SYSTEM FOR USE IN CONTROLLING OPERATION OF AN ELECTRICAL AP...
Publication number
20200119552
Publication date
Apr 16, 2020
Defond Electech Co., Ltd.
CHENG CHEN NIEH
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ELECTRICAL SWITCH FOR AN ELECTRICAL DEVICE AND SEALING ASSEMBLY FOR...
Publication number
20200090886
Publication date
Mar 19, 2020
Defond Electech Co., Ltd.
Kin Yu WONG
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
WARNING DEVICE AND SYSTEM
Publication number
20190333362
Publication date
Oct 31, 2019
Defond Electech Co., Ltd.
Massimo Fontanili
G08 - SIGNALLING
Information
Patent Application
CONTROL SYSTEM AND DEVICE FOR USE IN CONTROLLING OPERATION OF AN EL...
Publication number
20190302904
Publication date
Oct 3, 2019
Defond Electech Co., Ltd.
Cheng Chen NIEH
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LOCKING SYSTEM FOR USE WITH A TRIGGER ASSEMBLY OF AN ELECTRICAL DEVICE
Publication number
20190198270
Publication date
Jun 27, 2019
Defond Electech Co., Ltd.
Kin Yu Wong
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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