Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9751038 | End of service life indicating systems for layered filter cartridges | Kevin A. Frankel, Melissa A. Checky, Maria L. Zelinsky, Denise L. Goddard | 2017-09-05 |
| 9134251 | Porous chemical indicator for gaseous media | Neal A. Rakow, Duane D. Fansler | 2015-09-15 |
| 8647884 | Organic chemical sensor with microporous organosilicate material | Neal A. Rakow, John E. Trend | 2014-02-11 |