Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234540 | Sealing arrangement | Frans Pieter Drijver | 2001-05-22 |
| 4925219 | Fluid swivel assembly | Jack Pollack | 1990-05-15 |
| 4647076 | High pressure fluid swivel | Jack Pollack | 1987-03-03 |