Rock; Jeffrey A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Rock; Jeffrey A..The latest application filed is for "stack active area load sensing".
Company Profile
8.114.94
- Rock; Jeffrey A. - Rochester Hills MI
- Rock; Jeffrey A - Rochester Hills MI
- Rock; Jeffrey A. - Fairport NY
- Rock; Jeffrey A - Fairport NY
- Rock; Jeffrey A - Rochester NY
- Rock; Jeffrey A. - Rochester NY
- Rock; Jeffrey A. - Penfield NY
- Rock; Jeffrey A. - West Henrietta NY
Patent Activity
| Patent | Date |
|---|---|
| Stack Active Area Load Sensing App 20210249679 - Rock; Jeffrey A. | 2021-08-12 |
| Fuel cell stack assembly Grant 10,964,956 - Rock March 30, 2 | 2021-03-30 |
| Fuel cells, half plates, and methods for designing the same Grant 10,811,697 - Xi , et al. October 20, 2 | 2020-10-20 |
| Fuel cell stack alignment system and method of assembling a fuel cell stack Grant 10,811,719 - Rock October 20, 2 | 2020-10-20 |
| Fuel cell end plate unit and stack Grant 10,629,938 - Xi , et al. | 2020-04-21 |
| Method of manufacturing a fuel cell stack Grant 10,601,063 - Rock , et al. | 2020-03-24 |
| Fuel Cell Stack Alignment System And Method Of Assembling A Fuel Cell Stack App 20200052320 - Rock; Jeffrey A. | 2020-02-13 |
| Fuel Cells, Half Plates, And Methods For Designing The Same App 20190393515 - Xi; Liang ; et al. | 2019-12-26 |
| Fuel Cell Stack Assembly App 20190379065 - Rock; Jeffrey A. | 2019-12-12 |
| Fuel cell stack assembly Grant 10,468,707 - Yang , et al. No | 2019-11-05 |
| Method of manufacturing a fuel cell stack Grant 10,388,979 - Yang , et al. A | 2019-08-20 |
| Method For Manufactring An Overmolded Unitized Electrode Assembly App 20190067719 - Rock; Jeffrey A. | 2019-02-28 |
| Overmolded Unitized Electrode Assembly App 20190067713 - Rock; Jeffrey A. | 2019-02-28 |
| Method Of Manufacturing A Fuel Cell Stack App 20180323463 - Yang; Xi ; et al. | 2018-11-08 |
| Fuel Cell Stack Assembly App 20180323464 - Yang; Xi ; et al. | 2018-11-08 |
| Method Of Manufacturing A Fuel Cell Stack App 20180287181 - Rock; Jeffrey A. ; et al. | 2018-10-04 |
| Fuel Cell End Plate Unit And Stack App 20180241067 - Xi; Liang ; et al. | 2018-08-23 |
| Method for manufacturing a leak tight porous component Grant 10,035,311 - Dan , et al. July 31, 2 | 2018-07-31 |
| Method For Manufacturing A Leak Tight Porous Component App 20180194087 - Dan; Alexander John ; et al. | 2018-07-12 |
| Electrical signal processing system for fuel cell stack Grant 9,755,251 - Rock , et al. September 5, 2 | 2017-09-05 |
| Printed multi-function seals for fuel cells Grant 9,705,139 - Goebel , et al. July 11, 2 | 2017-07-11 |
| Systems and methods for mitigating carbon corrosion in a fuel cell system Grant 9,647,279 - Kumaraguru , et al. May 9, 2 | 2017-05-09 |
| Freeze-tolerant valve Grant 9,537,161 - Rock January 3, 2 | 2017-01-03 |
| Fuel cell plate features to resolve differences in component tolerances Grant 9,502,731 - Rock , et al. November 22, 2 | 2016-11-22 |
| Layered radiation-sensitive materials with varying sensitivity Grant 9,405,192 - Rock , et al. August 2, 2 | 2016-08-02 |
| Hemmed fuel cell stack enclosure Grant 9,379,408 - Chinnici , et al. June 28, 2 | 2016-06-28 |
| Plated photopolymer based fuel cell Grant 9,356,306 - Rock , et al. May 31, 2 | 2016-05-31 |
| Layered radiation-sensitive materials with varying sensitivity Grant 9,256,132 - Rock , et al. February 9, 2 | 2016-02-09 |
| Printed Multi-function Seals For Fuel Cells App 20160036068 - GOEBEL; STEVEN G. ; et al. | 2016-02-04 |
| Systems And Methods For Mitigating Carbon Corrosion In A Fuel Cell System App 20150325872 - KUMARAGURU; SWAMINATHA P. ; et al. | 2015-11-12 |
| Sealing design for stamped plate fuel cells Grant 9,178,224 - Goebel , et al. November 3, 2 | 2015-11-03 |
| Bipolar plate with features for mitigation of exit water retention Grant 9,153,826 - Owejan , et al. October 6, 2 | 2015-10-06 |
| Electrical Signal Processing System For Fuel Cell Stack App 20150263359 - Rock; Jeffrey A. ; et al. | 2015-09-17 |
| Solution to optical constraint on microtruss processing Grant 9,104,111 - Rock August 11, 2 | 2015-08-11 |
| Multi-cell electric signal processing bipolar plate features Grant 9,088,021 - Rock , et al. July 21, 2 | 2015-07-21 |
| Dual channel step in fuel cell plate Grant 9,017,895 - Rock , et al. April 28, 2 | 2015-04-28 |
| Freeze-tolerant Valve App 20150104722 - Rock; Jeffrey A. | 2015-04-16 |
| Fuel cell fabrication using photopolymer based processes Grant 9,005,847 - Rock , et al. April 14, 2 | 2015-04-14 |
| Redundancy for improved stack health monitoring reliability Grant 8,990,034 - Rock , et al. March 24, 2 | 2015-03-24 |
| Integrated baffles for a fuel cell stack Grant 8,986,860 - Vyas , et al. March 24, 2 | 2015-03-24 |
| Layered Radiation-sensitive Materials With Varying Sensitivity App 20150055114 - Rock; Jeffrey A. ; et al. | 2015-02-26 |
| Layered radiation-sensitive materials with varying sensitivity Grant 8,906,597 - Rock , et al. December 9, 2 | 2014-12-09 |
| Sealing Design For Stamped Plate Fuel Cells App 20140272661 - Goebel; Steven G. ; et al. | 2014-09-18 |
| Cell Retention Design And Process App 20140272662 - Rock; Jeffrey A. ; et al. | 2014-09-18 |
| Hemmed Fuel Cell Stack Enclosure App 20140255818 - Chinnici; Anthony G. ; et al. | 2014-09-11 |
| Aligning method for repeating and non-repeating units in a fuel cell stack Grant 8,795,921 - Rock , et al. August 5, 2 | 2014-08-05 |
| Methods for making a thermoformed subgasket and products thereof Grant 8,778,558 - Rock , et al. July 15, 2 | 2014-07-15 |
| Plated Photopolymer Based Fuel Cell App 20140186749 - Rock; Jeffrey A. ; et al. | 2014-07-03 |
| Plated photopolymer based fuel cell Grant 8,703,351 - Rock , et al. April 22, 2 | 2014-04-22 |
| Redundancy For Improved Stack Health Monitoring Reliability App 20140025320 - ROCK; Jeffrey A. ; et al. | 2014-01-23 |
| Sheared edge on fuel cell components for wicking of water Grant 8,603,701 - Goebel , et al. December 10, 2 | 2013-12-10 |
| Separator plates formed by photopolymer based processes Grant 8,592,096 - Rock , et al. November 26, 2 | 2013-11-26 |
| Methods For Making A Thermoformed Subgasket And Products Thereof App 20130309594 - Rock; Jeffrey A. ; et al. | 2013-11-21 |
| Combined subgasket and membrane support Grant 8,580,454 - Fly , et al. November 12, 2 | 2013-11-12 |
| Dynamic masking method for micro-truss foam fabrication Grant 8,557,505 - Lai , et al. October 15, 2 | 2013-10-15 |
| Method to produce a fuel cell flowfield with photopolymer walls Grant 8,546,064 - Rock , et al. October 1, 2 | 2013-10-01 |
| Seal for PEM fuel cell plate Grant 8,535,845 - Rock , et al. September 17, 2 | 2013-09-17 |
| Fuel cell fabrication using photopolymer based processes Grant 8,524,412 - Rock , et al. September 3, 2 | 2013-09-03 |
| Combined Subgasket And Membrane Support App 20130202989 - Fly; Gerald W. ; et al. | 2013-08-08 |
| Fuel cell bipolar plate exit for improved flow distribution and freeze compatibility Grant 8,501,364 - Owejan , et al. August 6, 2 | 2013-08-06 |
| Seal For Pem Fuel Cell Plate App 20130149630 - Rock; Jeffrey A. ; et al. | 2013-06-13 |
| Dynamic Projection Method For Micro-truss Foam Fabrication App 20130135599 - Lai; Yeh-Hung ; et al. | 2013-05-30 |
| Fuel Cell Bipolar Plate Exit For Improved Flow Distribution And Freeze Compatibility App 20130122389 - Owejan; Jon P. ; et al. | 2013-05-16 |
| Dynamic projection method for micro-truss foam fabrication Grant 8,426,119 - Lai , et al. April 23, 2 | 2013-04-23 |
| Plate interconnect method for an embedded fuel cell sensor Grant 8,409,761 - Rea , et al. April 2, 2 | 2013-04-02 |
| Fuel cell bipolar plate exit for improved flow distribution and freeze compatibility Grant 8,394,547 - Owejan , et al. March 12, 2 | 2013-03-12 |
| Seal for PEM fuel cell plate Grant 8,394,548 - Rock , et al. March 12, 2 | 2013-03-12 |
| Solution To Optical Constraint On Microtruss Processing App 20130057842 - Rock; Jeffrey A. | 2013-03-07 |
| Combined subgasket and membrane support Grant 8,389,177 - Fly , et al. March 5, 2 | 2013-03-05 |
| Metal bead seal for fuel cell plate Grant 8,371,587 - Fly , et al. February 12, 2 | 2013-02-12 |
| Dynamic Masking Method For Micro-truss Foam Fabrication App 20130033689 - Lai; Yeh-Hung ; et al. | 2013-02-07 |
| Solution to optical constraint on microtruss processing Grant 8,367,307 - Rock February 5, 2 | 2013-02-05 |
| Separator Plates Formed By Photopolymer Based Processes App 20130011763 - Rock; Jeffrey A. ; et al. | 2013-01-10 |
| Fuel cell with microtruss water vapor transport device Grant 8,329,347 - Rock , et al. December 11, 2 | 2012-12-11 |
| Fuel Cell Fabrication Using Photopolymer Based Processes App 20120301805 - Rock; Jeffrey A. ; et al. | 2012-11-29 |
| Dynamic masking method for micro-truss foam fabrication Grant 8,318,409 - Lai , et al. November 27, 2 | 2012-11-27 |
| Separator plates formed by photopolymer based processes Grant 8,309,274 - Rock , et al. November 13, 2 | 2012-11-13 |
| Bipolar plate with microgrooves for improved water transport Grant 8,277,986 - Trabold , et al. October 2, 2 | 2012-10-02 |
| Plated Photopolymer Based Fuel Cell App 20120244451 - Rock; Jeffrey A. ; et al. | 2012-09-27 |
| Method To Produce A Fuel Cell Flowfield With Photopolymer Walls App 20120244475 - ROCK; Jeffrey A. ; et al. | 2012-09-27 |
| Fuel cell fabrication using photopolymer based processes Grant 8,268,510 - Rock , et al. September 18, 2 | 2012-09-18 |
| Seal For Pem Fuel Cell Plate App 20120231370 - Rock; Jeffrey A. ; et al. | 2012-09-13 |
| Compliant feed region in stamped metal flowfield of a fuel cell plate to eliminate bias Grant 8,257,881 - Miller , et al. September 4, 2 | 2012-09-04 |
| Seal for PEM fuel cell plate Grant 8,211,585 - Rock , et al. July 3, 2 | 2012-07-03 |
| Dual Channel Step In Fuel Cell Plate App 20120129070 - Rock; Jeffrey A. ; et al. | 2012-05-24 |
| Fuel Cell Plate Features To Resolve Differences In Component Tolerances App 20120129065 - Rock; Jeffrey A. ; et al. | 2012-05-24 |
| Bipolar plate header formed features Grant 8,129,075 - Owejan , et al. March 6, 2 | 2012-03-06 |
| Diffusion media formed by photopolymer based processes Grant 8,092,957 - Rock , et al. January 10, 2 | 2012-01-10 |
| Water removal system for non-reactive regions in PEFMC stacks Grant 8,034,502 - Owejan , et al. October 11, 2 | 2011-10-11 |
| Fuel Cell Fabrication Using Photopolymer Based Processes App 20110229823 - Rock; Jeffrey A. ; et al. | 2011-09-22 |
| Plate Interconnect Method For An Embedded Fuel Cell Sensor App 20110200913 - Rea; David D. ; et al. | 2011-08-18 |
| Layered Radiation-sensitive Materials With Varying Sensitivity App 20110195363 - Rock; Jeffrey A. ; et al. | 2011-08-11 |
| Microtruss Water Vapor Transport Device App 20110195337 - Rock; Jeffrey A. ; et al. | 2011-08-11 |
| Sheared Edge On Fuel Cell Components For Wicking Of Water App 20110195335 - Goebel; Steven G. ; et al. | 2011-08-11 |
| Solution To Optical Constraint On Microtruss Processing App 20110195361 - Rock; Jeffrey A. | 2011-08-11 |
| Diffusion media for seal support for improved fuel cell design Grant 7,972,741 - Goebel , et al. July 5, 2 | 2011-07-05 |
| PTC element as a self regulating start resistor for a fuel cell stack Grant 7,935,449 - Andreas-Schott , et al. May 3, 2 | 2011-05-03 |
| Dynamic Masking Method For Micro-truss Foam Fabrication App 20110090480 - Lai; Yeh-Hung ; et al. | 2011-04-21 |
| Dynamic Projection Method For Micro-truss Foam Fabrication App 20110091813 - Lai; Yeh-Hung ; et al. | 2011-04-21 |
| Individual cell shorting during startup and shutdown using an integrated switch Grant 7,927,752 - Miller , et al. April 19, 2 | 2011-04-19 |
| Bipolar plate with inlet and outlet water management features Grant 7,901,832 - Trabold , et al. March 8, 2 | 2011-03-08 |
| Fuel cell stack compression retention system using overlapping sheets Grant 7,851,102 - Andreas-Schott , et al. December 14, 2 | 2010-12-14 |
| Diffusion Media Formed By Photopolymer Based Processes App 20100291466 - Rock; Jeffrey A. ; et al. | 2010-11-18 |
| Separator Plates Formed By Photopolymer Based Processes App 20100291465 - Rock; Jeffrey A. ; et al. | 2010-11-18 |
| Aligning Method For Repeating And Non-Repeating Units In A Fuel Cell Stack App 20100279195 - Rock; Jeffrey A. ; et al. | 2010-11-04 |
| Pre-nesting of the active area on plates to reduce thickness variation Grant 7,823,277 - Keyser , et al. November 2, 2 | 2010-11-02 |
| Multi-cell Electric Signal Processing Bipolar Plate Features App 20100261081 - Rock; Jeffrey A. ; et al. | 2010-10-14 |
| Fuel cell stack compression retention system with external springs Grant 7,807,316 - Andreas-Schott , et al. October 5, 2 | 2010-10-05 |
| Aligning method for repeating and non-repeating units in a fuel cell stack Grant 7,794,890 - Rock , et al. September 14, 2 | 2010-09-14 |
| Bipolar plate with cross-linked channels Grant 7,781,122 - Beutel , et al. August 24, 2 | 2010-08-24 |
| Stamped fuel cell bipolar plate Grant 7,781,087 - Rock , et al. August 24, 2 | 2010-08-24 |
| Layered Radiation-sensitive Materials With Varying Sensitivity App 20100159398 - Rock; Jeffrey A. ; et al. | 2010-06-24 |
| Combined Subgasket And Membrane Support App 20100159294 - Fly; Gerald W. ; et al. | 2010-06-24 |
| Fuel Cell Fabrication Using Photopolymer Based Processes App 20100159303 - Rock; Jeffrey A. ; et al. | 2010-06-24 |
| Bifurcation of flow channels in bipolar plate flowfields Grant 7,718,298 - Tighe , et al. May 18, 2 | 2010-05-18 |
| Method to maximize fuel cell stack shorting resistance Grant 7,709,120 - Lai , et al. May 4, 2 | 2010-05-04 |
| Isolated and insulated stack end unit inlet/outlet manifold headers Grant 7,704,626 - Van Benthem , et al. April 27, 2 | 2010-04-27 |
| Bipolar Plate Header Formed Features App 20100099001 - OWEJAN; JON P. ; et al. | 2010-04-22 |
| Bipolar Plate With Features For Mitigation Of Exit Water Retention App 20100086820 - Owejan; Jon P. ; et al. | 2010-04-08 |
| Pressurized coolant for stamped plate fuel cell without diffusion media in the inactive feed region Grant 7,687,182 - Goebel , et al. March 30, 2 | 2010-03-30 |
| Compliant Feed Region In Stamped Metal Flowfield Of A Fuel Cell Plate To Eliminate Bias App 20100015505 - Miller; Daniel P. ; et al. | 2010-01-21 |
| Bipolar Plate With Inlet And Outlet Water Management Features App 20090286133 - Trabold; Thomas A. ; et al. | 2009-11-19 |
| Branched fluid channels for improved fluid flow through fuel cell Grant 7,618,734 - Rapaport , et al. November 17, 2 | 2009-11-17 |
| Integrated Baffles For A Fuel Cell Stack App 20090263702 - Vyas; Saurabh ; et al. | 2009-10-22 |
| Stamped PEM fuel cell plate manufacturing Grant 7,604,888 - Rock , et al. October 20, 2 | 2009-10-20 |
| Seal For Pem Fuel Cell Plate App 20090253022 - Rock; Jeffrey A. ; et al. | 2009-10-08 |
| Edge stress relief in diffusion media Grant 7,597,983 - Lai , et al. October 6, 2 | 2009-10-06 |
| Seal configuration for fuel cell stack Grant 7,592,088 - Rock , et al. September 22, 2 | 2009-09-22 |
| Metal Bead Seal For Fuel Cell Plate App 20090197147 - Fly; Gerald W. ; et al. | 2009-08-06 |
| Pre-nesting Of The Active Area On Plates To Reduce Thickness Variation App 20090188099 - Keyser; Mark W. ; et al. | 2009-07-30 |
| Fuel Cell Bipolar Plate Exit For Improved Flow Distribution And Freeze Compatibility App 20090068535 - Owejan; Jon P. ; et al. | 2009-03-12 |
| Fuel cell stack design and method of operation Grant 7,494,735 - Rapaport , et al. February 24, 2 | 2009-02-24 |
| Bipolar Plate With Microgrooves For Improved Water Transport App 20090011310 - Trabold; Thomas A. ; et al. | 2009-01-08 |
| Stamped Fuel Cell Bipolar Plate App 20090004522 - Rock; Jeffrey A. ; et al. | 2009-01-01 |
| Method To Maximize Fuel Cell Stack Shorting Resistance App 20090004513 - Lai; Yeh-Hung ; et al. | 2009-01-01 |
| Fuel Cell Stack Compression Retention System Using Overlapping Sheets App 20080311457 - Andreas-Schott; Benno ; et al. | 2008-12-18 |
| Stamped fuel cell bipolar plate Grant 7,459,227 - Rock , et al. December 2, 2 | 2008-12-02 |
| Water Removal System For Non-reactive Regions In Pefmc Stacks App 20080241607 - Owejan; Jon P. ; et al. | 2008-10-02 |
| Bifurcation Of Flow Channels In Bipolar Plate Flowfields App 20080226967 - Tighe; Thomas W. ; et al. | 2008-09-18 |
| Individual Cell Shorting During Startup And Shutdown Using An Integrated Switch App 20080220294 - Miller; Daniel P. ; et al. | 2008-09-11 |
| Ptc Element As A Self Regulating Start Resistor For A Fuel Cell Stack App 20080187802 - Andreas-Schott; Benno ; et al. | 2008-08-07 |
| Fuel cell stack compression retention system with external springs App 20080102345 - Andreas-Schott; Benno ; et al. | 2008-05-01 |
| Compact fuel cell stack structure Grant 7,344,797 - Rock March 18, 2 | 2008-03-18 |
| Stamped bridges and plates for reactant delivery for a fuel cell Grant 7,318,973 - Rock , et al. January 15, 2 | 2008-01-15 |
| Diffusion media for seal support for improved fuel cell design App 20070275288 - Goebel; Steven G. ; et al. | 2007-11-29 |
| Reactant feed for nested stamped plates for a compact fuel cell Grant 7,291,414 - Goebel , et al. November 6, 2 | 2007-11-06 |
| Device and method to expand operating range of a fuel cell stack Grant 7,261,968 - Skala , et al. August 28, 2 | 2007-08-28 |
| Pressurized coolant for stamped plate fuel cell without diffusion media in the inactive feed region App 20070082252 - Goebel; Steven G. ; et al. | 2007-04-12 |
| One piece bipolar plate with spring seals Grant 7,186,476 - Rock March 6, 2 | 2007-03-06 |
| Bipolar plate assembly having transverse legs Grant 7,081,316 - Rock , et al. July 25, 2 | 2006-07-25 |
| Reactant feed for nested stamped plates for a compact fuel cell App 20060127706 - Goebel; Steven G. ; et al. | 2006-06-15 |
| Method and apparatus for providing a uniform fuel cell stack structure Grant 7,045,245 - Rock May 16, 2 | 2006-05-16 |
| Aligning method for repeating and non-repeating units in a fuel cell stack App 20060051651 - Rock; Jeffrey A. ; et al. | 2006-03-09 |
| Edge stress relief in diffusion media App 20060046124 - Lai; Yeh-Hung ; et al. | 2006-03-02 |
| Seal configuration for fuel cell stack App 20060046128 - Rock; Jeffrey A. ; et al. | 2006-03-02 |
| Stamped bridges and plates for reactant delivery for a fuel cell App 20060035133 - Rock; Jeffrey A. ; et al. | 2006-02-16 |
| Stamped PEM fuel cell plate manufacturing App 20060024550 - Rock; Jeffrey A. ; et al. | 2006-02-02 |
| Isolated and insulated stack end unit inlet/outlet manifold headers App 20060024559 - Benthem; Paul J. Van ; et al. | 2006-02-02 |
| Branched fluid channels for improved fluid flow through fuel cell App 20050260472 - Rapaport, Pinkhas A. ; et al. | 2005-11-24 |
| Bipolar plate with cross-linked channels App 20050153184 - Beutel, Matthew J. ; et al. | 2005-07-14 |
| Device and method to expand operating range of a fuel cell stack Grant 6,911,277 - Skala , et al. June 28, 2 | 2005-06-28 |
| Stamped bipolar plate for PEM fuel cell stack Grant 6,893,770 - Rock May 17, 2 | 2005-05-17 |
| Lambda sensing with a fuel cell stack Grant 6,893,756 - Clingerman , et al. May 17, 2 | 2005-05-17 |
| One piece bipolar plate with spring seals App 20050100775 - Rock, Jeffrey A. | 2005-05-12 |
| Device and method to expand operating range of a fuel cell stack App 20050037254 - Skala, Glenn W. ; et al. | 2005-02-17 |
| Fuel cell stack design and method of operation App 20050019648 - Rapaport, Pinkhas A. ; et al. | 2005-01-27 |
| Stamped fuel cell bipolar plate App 20040209150 - Rock, Jeffrey A. ; et al. | 2004-10-21 |
| Fuel cell stack design and method of operation Grant 6,794,068 - Rapaport , et al. September 21, 2 | 2004-09-21 |
| Fuel cell stack design and method of operation App 20040043279 - Rapaport, Pinkhas A. ; et al. | 2004-03-04 |
| End plates for a fuel cell stack structure Grant 6,663,995 - Rock December 16, 2 | 2003-12-16 |
| Bipolar plate assembly having transverse legs App 20030215692 - Rock, Jeffrey A. ; et al. | 2003-11-20 |
| Device and method to expand operating range of a fuel cell stack App 20030207165 - Skala, Glenn W. ; et al. | 2003-11-06 |
| Lambda sensing with a fuel cell stack App 20030203253 - Clingerman, Bruce J. ; et al. | 2003-10-30 |
| End Plates For A Fuel Cell Stack Structure App 20030203270 - Rock, Jeffrey A. | 2003-10-30 |
| Method and apparatus for providing a uniform fuel cell stack structure App 20030203269 - Rock, Jeffrey A. | 2003-10-30 |
| Compact fuel cell stack structure App 20030203268 - Rock, Jeffrey A. | 2003-10-30 |
| Stamped bipolar plate for PEM fuel cell stack App 20030124405 - Rock, Jeffrey A. | 2003-07-03 |
| Stamped bipolar plate for PEM fuel cell stack Grant 6,503,653 - Rock January 7, 2 | 2003-01-07 |
| Stamped bipolar plate for PEM fuel cell stack App 20020119358 - Rock, Jeffrey A. | 2002-08-29 |
| Vehicle emission air injection Grant 5,491,976 - Rock , et al. February 20, 1 | 1996-02-20 |
| Twist lock attachment for a thermal probe Grant 5,342,126 - Heston , et al. August 30, 1 | 1994-08-30 |
| Fuel injection nozzle Grant 5,070,845 - Avdenko , et al. December 10, 1 | 1991-12-10 |
| Self-contained fuel pressure regulator Grant 4,756,289 - Rock , et al. July 12, 1 | 1988-07-12 |
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