Inventor · disambiguated record
Richard D. Sawyer
Also filed as: SAWYER RICHARD · SAWYER RICHARD D
17 granted patents·7 pending applications·690 citations·filing 1978–2010
96Inventor score
Files withUTC FUEL CELLS LLC4INT FUEL CELLS CORP3UNITED TECHNOLOGIES CORP3UTC POWER CORP3BEKKEDAHL TIMOTHY A2
Top patents by PatentIndex Score
24 records- 0198US4769297ASolid polymer electrolyte fuel cell stack water management systemINT FUEL CELLS CORP·Filed 1987·Granted Sep 6, 1988·215 cites·8 claims
- 0294US6858336B2Procedure for shutting down a fuel cell system using air purgeUTC FUEL CELLS LLC·Filed 2002·Granted Feb 22, 2005·61 cites·32 claims
- 0394US4574112ACooling system for electrochemical fuel cellUNITED TECHNOLOGIES CORP·Filed 1983·Granted Mar 4, 1986·67 cites·11 claims
- 0493US6569549B1Method for increasing the operational efficiency of a fuel cell power plantUTC FUEL CELLS LLC·Filed 2000·Granted May 27, 2003·55 cites·21 claims
- 0592US6887599B2Procedure for starting up a fuel cell system using a fuel purgeUTC FUEL CELLS LLC·Filed 2002·Granted May 3, 2005·39 cites·8 claims
- 0689US4198597ANegative cell detector for a multi-cell fuel cell stackUNITED TECHNOLOGIES CORP·Filed 1978·Granted Apr 15, 1980·45 cites·5 claims
- 0788US7410712B2Procedure for starting up a fuel cell system using a fuel purgeUTC POWER CORP·Filed 2005·Granted Aug 12, 2008·7 cites·3 claims
- 0886US7250229B2Procedure for starting up a fuel cell system having an anode exhaust recycle loopUTC POWER CORP·Filed 2005·Granted Jul 31, 2007·6 cites·23 claims
- 0986US4372759AElectrolyte vapor condenserUNITED TECHNOLOGIES CORP·Filed 1981·Granted Feb 8, 1983·39 cites·8 claims
- 1075US6455183B1Vacuum oxidant PEM fuel cellUTC FUEL CELLS LLC·Filed 2000·Granted Sep 24, 2002·13 cites·9 claims
- 1173US4755439AFuel cell configuration for contaminated fuel gases and method of using the sameINT FUEL CELLS CORP·Filed 1987·Granted Jul 5, 1988·28 cites·12 claims
- 1270US5406049AFog-resistant mirror assemblyFiled 1994·Granted Apr 11, 1995·28 cites·11 claims
- 1365US7258945B2Fuel cell having a hydrophilic substrate layerUTC POWER CORP·Filed 2003·Granted Aug 21, 2007·5 cites·3 claims
- 1465US5083009AFog-resistant mirror assemblyREISER CARL·Filed 1989·Granted Jan 21, 1992·20 cites·6 claims
- 1563US5270132AMinimized corrosion fuel cell device and a method of making the sameINT FUEL CELLS CORP·Filed 1991·Granted Dec 14, 1993·23 cites·7 claims
- 1661US5347106AFog-resisant mirror assemblyREISER CARL A·Filed 1992·Granted Sep 13, 1994·18 cites·19 claims
- 1757US2007298290A1Fuel cell having a hydrophilic substrate layerBEKKEDAHL TIMOTHY A·Filed 2007·Application pending·0 cites
- 1855US2011039178A1Fuel cell having a hydrophilic substrate layerBEKKEDAHL TIMOTHY A·Filed 2010·Application pending·0 cites
- 1949US6306530B1System for preventing gas pocket formation in a PEM coolant flow fieldINT FUEL CELLS LLC·Filed 1998·Granted Oct 23, 2001·21 cites·10 claims
- 2046US2003129462A1Procedure for starting up a fuel cell system having an anode exhaust recycle loopFiled 2002·Application pending·0 cites
- 2145US2002076582A1Procedure for starting up a fuel cell system using a fuel purgeFiled 2000·Application pending·0 cites
- 2243US2002071978A1Fuel cell having a hydrophilic substrate layerFiled 2001·Application pending·0 cites
- 2340US2002076583A1Procedure for shutting down a fuel cell system using air purgeFiled 2000·Application pending·0 cites
- 2440US2002102443A1Procedure for shutting down a fuel cell system having an anode exhaust recycle loopFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →