Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12203038 | Systems and methods for purging an isolation valve with a liquid purge medium | Kenneth W. Krause | 2025-01-21 |
| 12163598 | Systems and methods for single piece integrated seat | Kenneth W. Krause | 2024-12-10 |
| 11852258 | Systems and methods for purging an isolation valve with a liquid purge medium | — | 2023-12-26 |
| 11674602 | Automated line blind | — | 2023-06-13 |
| 11067185 | Systems and methods for improved valve stem coupling assembly for isolating the torque load from the thrust load | Kenneth W. Krause | 2021-07-20 |
| 11041569 | Systems and methods for floating seat plate | Kenneth W. Krause | 2021-06-22 |
| 10683941 | Black-powder-resistant through conduit valve | Ruben F. Lah, Gary Larsen | 2020-06-16 |
| 8851451 | Non-rising electric actuated valve operator | Christopher Orino | 2014-10-07 |
| 6079695 | Butterfly valve construction | Jerry Gasaway, David Stephan | 2000-06-27 |
| 5417405 | Obturator for ball valve | David Stephan | 1995-05-23 |
| 5263685 | Valve seat | Don Winnike | 1993-11-23 |