Inventor
Richard D. Sawyer
Inventor
Canton, CT, US
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy36%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution36%
H05BElectric heating8%
B01DSeparation3%
F28BSteam or vapour condensers3%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact3%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application3%
G01RMeasuring electric variables3%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications3%
Y02PClimate change mitigation technologies in the production or processing of goods3%
PatentTitleYear
7,410,712'Procedure for starting up a fuel cell system using a fuel purge'20087,258,945'Fuel cell having a hydrophilic substrate layer'20077,250,229'Procedure for starting up a fuel cell system having an anode exhaust recycle loop'20076,887,599'Procedure for starting up a fuel cell system using a fuel purge'20056,858,336'Procedure for shutting down a fuel cell system using air purge'20056,569,549'Method for increasing the operational efficiency of a fuel cell power plant'20036,455,183'Vacuum oxidant PEM fuel cell'20026,306,530'System for preventing gas pocket formation in a PEM coolant flow field'20015,406,049'Fog-resistant mirror assembly'19955,347,106'Fog-resisant mirror assembly'19945,270,132'Minimized corrosion fuel cell device and a method of making the same'19935,083,009'Fog-resistant mirror assembly'19924,769,297'Solid polymer electrolyte fuel cell stack water management system'19884,755,439'Fuel cell configuration for contaminated fuel gases and method of using the same'19884,574,112'Cooling system for electrochemical fuel cell'19864,372,759'Electrolyte vapor condenser'19834,198,597'Negative cell detector for a multi-cell fuel cell stack'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1986Patents assigned to UNITED TECHNOLOGIES CORP (3)· patent assignee history
1980–1995Based in Canton, CT, US· patent location history
1988–1993Patents assigned to INT FUEL CELLS CORP (3)· patent assignee history
2001Patents assigned to INT FUEL CELLS LLC (1)· patent assignee history
2001–2008Based in Groveton, NH, US· patent location history
2002–2005Patents assigned to UTC FUEL CELLS LLC (4)· patent assignee history
2007–2008Patents assigned to UTC POWER CORP (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UTC FUEL CELLS LLC | 4 | 2002–2005 |
| INT FUEL CELLS CORP | 3 | 1988–1993 |
| UNITED TECHNOLOGIES CORP | 3 | 1980–1986 |
| UTC POWER CORP | 3 | 2007–2008 |
| INT FUEL CELLS LLC | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Canton, CT, US | 9 | 1980–1995 |
| Groveton, NH, US | 8 | 2001–2008 |