Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702616 | Aramid fiber filtration sheet | Peter J. Degen | 1997-12-30 |
| 5529844 | Aramid fiber filtration sheet | Peter J. Degen | 1996-06-25 |
| 4734208 | Charge-modified microfiber filter sheets | David B. Pall, Peter J. Degen, Irving B. Joffee, Thomas C. Gsell | 1988-03-29 |
| 4693928 | Porous, fibrous structures with thermoplastic fluorocarbon coating and method of making | — | 1987-09-15 |
| 4523995 | Charge-modified microfiber filter sheets | David B. Pall, Peter J. Degen, Irving B. Joffee, Thomas C. Gsell | 1985-06-18 |