Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623550 | Apparatus for controlling air quality | Dipak I. Shah, Chin-Hsiung Chang, John D. Howard, Ronald P. Rohrbach, Peter D. Unger +2 more | 2003-09-23 |
| 6585810 | Polymer-bound nitrogen adsorbent | Romulus Gaita, Shaojun Zhou, Chin-Hsiung Chang | 2003-07-01 |