Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE39493 | Respirator having snap-fit filter cartridge | Peter O. Rekow, Thomas W. Holmquist-Brown | 2007-02-27 |
| 5666949 | Exposure indicator with continuous alarm signal indicating multiple conditions | Mark K. Debe, Lowell R. Miller, Edward E. Parsonage, Richard J. Poirier | 1997-09-16 |
| 5659296 | Exposure indicating apparatus | Mark K. Debe, Edward E. Parsonage, Richard J. Poirier, Lowell R. Miller | 1997-08-19 |
| 5579761 | Respirator having snap-fit filter cartridge | Peter O. Rekow, Thomas W. Holmquist-Brown | 1996-12-03 |