Issued Patents All Time
Showing 26–50 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6586128 | Differential pressure fluid flow fields for fuel cells | Mark C. Johnson, John Kenna, Olen Vanderleeden, Joerg Zimmerman, Mehrzad Tabatabaian | 2003-07-01 |
| 6548202 | Carbon-supported catalysts for fuel cells | Stephen A. Campbell, Jason Edward Chisham | 2003-04-15 |
| 6541145 | Flow fields for supporting fluid diffusion layers in fuel cells | Olen Vanderleeden, Joerg Zimmerman | 2003-04-01 |
| 6527943 | Fuel cell concentration sensor | Jiujun Zhang, Kevin Colbow, Jens Müller | 2003-03-04 |
| 6517962 | Fuel cell anode structures for voltage reversal tolerance | Shanna Knights, Jared L. Taylor, David Wainwright | 2003-02-11 |
| 6500572 | Method for operating fuel cells on impure fuels | Shanna Knights, Michael Lauritzen, Rajeev Vohra | 2002-12-31 |
| 6492043 | Method and apparatus for detecting a leak within a fuel cell | Shanna Knights, Ruediger Nebelsiek, Jürgen Stumper | 2002-12-10 |
| 6475651 | Method and apparatus for detecting transfer leaks in fuel cells | Stephen A. Campbell | 2002-11-05 |
| 6472090 | Method and apparatus for operating an electrochemical fuel cell with periodic reactant starvation | Kevin Colbow, Marian van der Geest, Cindy J. Longley, Jens Müller, Joy Roberts +4 more | 2002-10-29 |
| 6461751 | Method and apparatus for operating a fuel cell | Gustav Boehm, Shanna Knights, Reinhold Schamm, Nicholas Fletcher | 2002-10-08 |
| 6413664 | Fuel cell separator plate with discrete fluid distribution features | Olen Vanderleeden, James Dudley | 2002-07-02 |
| 6410175 | Fuel cell system with improved starting capability | Werner Tillmetz, Kevin Colbow, Jean St.-Pierre | 2002-06-25 |
| 6350538 | Fuel cell with fluid distribution layer having intergral sealing capability | Stephen A. Campbell, Juergen Stumper | 2002-02-26 |
| 6329089 | Method and apparatus for increasing the temperature of a fuel cell | Joy Roberts, Marian Geest, Jean St-Pierre, Alvin Lee, Stephanie Moroz | 2001-12-11 |
| 6306536 | Method of reducing fuel cell performance degradation of an electrode comprising porous components | Jean St.-Pierre, Joy Roberts, Stephen A. Campbell | 2001-10-23 |
| 6210820 | Method for operating fuel cells on impure fuels | Shanna Knights, Michael Lauritzen, Rajeev Vohra | 2001-04-03 |
| 6187467 | Ionomer impregnation of electrode substrates for improved fuel cell performance | Jiujun Zhang, Kevin Colbow | 2001-02-13 |
| 6153323 | Electrode treatment method for improving performance in liquid feed fuel cells | Kevin Colbow, Jiujun Zhang | 2000-11-28 |
| 6096448 | Method and apparatus for operating an electrochemical fuel cell with periodic fuel starvation at the anode | Clarence Y. Chow, Derek E. Allan, deceased, by Patricia Joanne Allan, administrator, Erik Paul Johannes, Joy Roberts +3 more | 2000-08-01 |
| 6074773 | Impregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cell | Stephen A. Campbell, Joy Roberts | 2000-06-13 |
| 6060190 | Electrochemical fuel cell membrane electrode assembly with porous electrode substrate | Stephen A. Campbell, Juergen Stumper, Michael Davis | 2000-05-09 |
| 5976726 | Electrochemical cell with fluid distribution layer having integral sealing capability | Juergen Stumper, Stephen A. Campbell, Michael Davis, Gordon Lamont | 1999-11-02 |
| 5874182 | Method and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cell | Mark C. Johnson, Kevin Colbow, Stephen A. Campbell | 1999-02-23 |
| 5871860 | Manufacture of electrodes | Jonathan Charles Frost, John Gascoyne, Graham Alan Hards, Keith B. Prater | 1999-02-16 |
| 5863673 | Porous electrode substrate for an electrochemical fuel cell | Stephen A. Campbell, Juergen Stumper, Michael Davis | 1999-01-26 |