Jian Wen

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North Andover, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Hybrid power system with electric generator and auxiliary power source
- Patent number 11,936,327
- Issue date Mar 19, 2024
- Tecogen Inc.
- Joseph Gehret
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Internal combustion engine controller
- Patent number 9,702,306
- Issue date Jul 11, 2017
- Tecogen Inc.
- Joseph Gehret
- G05 - CONTROLLING REGULATING
Information Patent Grant
Transformerless, load adaptive speed controller
- Patent number 6,969,922
- Issue date Nov 29, 2005
- Youtility, INC
- Richard Shaun Welches
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Transformerless, load adaptive speed controller
- Patent number 6,879,053
- Issue date Apr 12, 2005
- Youtility, INC
- Richard Shaun Welches
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Hybrid Power System with Electric Generator and Auxiliary Power Source
- Publication number 20220416700
- Publication date Dec 29, 2022
- Tecogen Inc.
- Joseph Gehret
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Internal Combustion Engine Controller
- Publication number 20170101942
- Publication date Apr 13, 2017
- Tecogen Inc.
- Joseph Gehret
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Transformerless, load adaptive speed controller
- Publication number 20050140142
- Publication date Jun 30, 2005
- YOUTILITY, INC.
- Richard Shaun Welches
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Hybrid variable speed generator/uninterruptible power supply power...
- Publication number 20040084965
- Publication date May 6, 2004
- Richard Shaun Welches
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Local area grid for distributed power
- Publication number 20020036430
- Publication date Mar 28, 2002
- Richard S. Welches
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC