Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623550 | Apparatus for controlling air quality | Chin-Hsiung Chang, John D. Howard, Ronald P. Rohrbach, Peter D. Unger, Stephen Yates +2 more | 2003-09-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623550 | Apparatus for controlling air quality | Chin-Hsiung Chang, John D. Howard, Ronald P. Rohrbach, Peter D. Unger, Stephen Yates +2 more | 2003-09-23 |