Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837557 | Axially sliding seal | Samuel D. Wagoner, Larry J. Castleman | 2020-11-17 |
| 6648337 | Backup ring with controlled spacing | Larry J. Castleman | 2003-11-18 |
| 6607197 | Rotary seal with relief angle for controlled tipping | Larry J. Castleman | 2003-08-19 |
| 6450502 | Rotary seal with relief angle for controlled tipping | Larry J. Castleman | 2002-09-17 |