Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792953 | Tobacco smoke filter | Reid W. von Borstel | 2004-09-21 |
| 6530377 | Cigarette filter containing dry water and a porphyrin | Reid W. von Borstel | 2003-03-11 |
| 6164288 | Cigarette filter containing dry water and microcapsules | Reid W. von Borstel | 2000-12-26 |
| 5975086 | Cigarette filter containing dry water and microcapsules | Reid W. von Borstel | 1999-11-02 |
| 5860428 | Cigarette filter containing a humectant | Reid W. von Borstel | 1999-01-19 |
| 5839447 | Cigarette filter containing microcapsules and sodium pyroglutamate | Reid W. von Borstel | 1998-11-24 |
| 5746231 | Tobacco smoke filter for removing toxic compounds | Reid W. von Borstel | 1998-05-05 |
| 5501238 | Cigarette filter containing a humectant | Reid W. von Borstel | 1996-03-26 |