Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12055222 | Non-collapsible flexible sealing membrane and seal assembly for rotary shaft equipment | Darin Merrill Rasmussen, Tom Steigerwald, Syed Niamathullah, Dan Kozlowski, Michael G. Kalodimos | 2024-08-06 |
| 11821523 | Non-pusher dry gas seal with sealing elastomer and systems utilizing same | Prashanthi Tirunagari | 2023-11-21 |
| 11815185 | Non-pusher dry running seal with sealing elastomer as a backup in sliding seal system | Prashanthi Tirunagari | 2023-11-14 |
| 11473680 | Non-collapsible flexible sealing membrane and seal assembly for rotary shaft equipment | Darin Merrill Rasmussen, Tom Steigerwald, Syed Niamathullah, Dan Kozlowski, Michael G. Kalodimos | 2022-10-18 |
| 10634250 | Non-collapsible flexible sealing membrane and seal assembly for rotary shaft equipment | Darin Merrill Rasmussen, Tom Steigerwald, Syed Niamathullah, Dan Kozlowski, Michael G. Kalodimos | 2020-04-28 |
| 6142478 | Gas lubricated slow speed seal | Glenn G. Pecht, John P. Czubek, Ralph P. Gabriel, Anca Vasilache, Robert Peter Rieger | 2000-11-07 |
| 5938206 | Pressure responsive primary ring for a non-contacting mechanical end face seal | Gregory E. Klosterman, Wei-Tang Lai | 1999-08-17 |
| 5713576 | Gas lubricated barrier seal | Douglas J. Volden, James P. Netzel | 1998-02-03 |
| 5681047 | Pressure responsive primary ring geometry for a non-contacting mechanical end face seal | Gregory E. Klostermann, Wei-Tang Lai | 1997-10-28 |
| 5468002 | Mechanical end face seal having an improved mating ring | — | 1995-11-21 |
| 5375853 | Secondary containment seal | Douglas J. Volden, James P. Netzel | 1994-12-27 |