Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 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 | $27,884,000 |
| 9134251 | Porous chemical indicator for gaseous media | Neal A. Rakow, Duane D. Fansler | 2015-09-15 | $19,651,000 |
| 8647884 | Organic chemical sensor with microporous organosilicate material | Neal A. Rakow, John E. Trend | 2014-02-11 | $15,668,000 |