Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8728212 | High efficiency low pressure drop synthetic fiber based air filter made completely from post consumer waste materials | Kathy Brownstein | 2014-05-20 |
| 8398752 | High efficiency low pressure drop synthetic fiber based air filter made completely from post consumer waste materials | Kathy Brownstein | 2013-03-19 |
| 6632501 | Loose fiber adsorbent | Kathy Brownstein, Brent Hepner | 2003-10-14 |