Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7946556 | Resilient seat seal for a valve | — | 2011-05-24 |
| 4225113 | Butterfly valve having cartridge construction with improved bearings | Paul J. Barthelemy, Dale R. Clausing, Albert W. Libke | 1980-09-30 |
| 4225114 | Butterfly valve with improved shaft connection | Paul J. Barthelemy, Dale R. Clausing, Albert W. Libke | 1980-09-30 |