Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6375725 | End-of-service indicator including porous waveguide for respirator cartridge | Pierre Bernard, Serge Caron, Marco St-Pierre | 2002-04-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6375725 | End-of-service indicator including porous waveguide for respirator cartridge | Pierre Bernard, Serge Caron, Marco St-Pierre | 2002-04-23 |