Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12181050 | Ring with recirculating grooves for dry gas seal | Douglas J. Volden | 2024-12-31 |
| 12055222 | Non-collapsible flexible sealing membrane and seal assembly for rotary shaft equipment | Darin Merrill Rasmussen, Tom Steigerwald, Dan Kozlowski, James R. Wasser, Michael G. Kalodimos | 2024-08-06 |
| 11473680 | Non-collapsible flexible sealing membrane and seal assembly for rotary shaft equipment | Darin Merrill Rasmussen, Tom Steigerwald, Dan Kozlowski, James R. Wasser, Michael G. Kalodimos | 2022-10-18 |
| 10634250 | Non-collapsible flexible sealing membrane and seal assembly for rotary shaft equipment | Darin Merrill Rasmussen, Tom Steigerwald, Dan Kozlowski, James R. Wasser, Michael G. Kalodimos | 2020-04-28 |