Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6257242 | Filter element | — | 2001-07-10 |
| 5909736 | Removal of noxious oxidants and carcinogenic volatile nitrosocompounds from cigarette smoke using biological substances | George Deliconstantinos | 1999-06-08 |