Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836123 | Sensor for electro-active materials | Zhigang Qi, Arthur Kaufman | 2004-12-28 |
| 6730424 | Electrochemical method to improve the performance of H2/air PEM fuel cells and direct methanol fuel cells | Zhigang Qi, Arthur Kaufman | 2004-05-04 |