Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6743328 | Grounded centering ring for inhibiting polymer build-up on the diaphragm of a manometer | Roger Schutz | 2004-06-01 |
| 6451159 | Grounded centering ring for inhibiting polymer build-up on the diaphragm of a manometer | Roger Schutz | 2002-09-17 |