Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7464750 | Rotary fluid-sealing structure using speed-reduction stages | Rodney Schapel | 2008-12-16 |
| 6641141 | Self-contained anti-blowout seal for fluids or gases | — | 2003-11-04 |
| 6050572 | Rotary cartridge seals with retainer | Peter J. Balsells | 2000-04-18 |