Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6649295 | Membrane electrode assembly having annealed polymer electrolyte membrane | Steven J. Hamrock, John Lewin | 2003-11-18 |
| 6646075 | High molecular weight perfluorocyclobutane polymers and method of making | Allen R. Siedle | 2003-11-11 |
| 6559237 | Sulfonated perfluorocyclobutane ion-conducting membranes | Krzysztof A. Lewinski, David A. Ylitalo | 2003-05-06 |