Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451723 | Polymer-bound nitrogen adsorbent and method of making and using it | Romulus Gaita, Shaojun Zhou, Chin-Hsiung Chang | 2002-09-17 |
| 6428608 | Method and apparatus for controlling air quality | Dipak J. Shah, Chin-Hsiung Chang, John D. Howard, Ronald P. Rohrbach, Peter D. Unger +2 more | 2002-08-06 |
| 6380270 | Photogenerated nanoporous materials | — | 2002-04-30 |