Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6769476 | Ceiling cooling or heating apparatus | Uwe Schulz | 2004-08-03 |
| 6716406 | Control system for a photocatalytic air purifier | Bradley Reisfeld, Robert Chiang, Kevin B. Dunshee, Thierry Jomard | 2004-04-06 |