Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 11027231 | Air filter with visual filter life indicator zone and sorbent-loaded visual reference zone | Liang Cheng, Andrew R. Fox, Zhiqun Zhang | 2021-06-08 | $56,396,000 |
| 10960341 | Air filters comprising polymeric sorbents for aldehydes | Michael S. Wendland, Michael W. Kobe, Andrew R. Fox | 2021-03-30 | $50,216,000 |