Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6946211 | Polymer electrolyte membrane fuel cells | Qingfeng Li, Hans Aage Hjuler | 2005-09-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6946211 | Polymer electrolyte membrane fuel cells | Qingfeng Li, Hans Aage Hjuler | 2005-09-20 |