Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5129689 | Threaded tubular connection with outer threaded ring | Milagro Newski, Olegario Rivas | 1992-07-14 |
| 4976591 | Self lubricating, two stage variable compressor | Olegario Rivas, Simon Antunez | 1990-12-11 |
| 4913230 | Sucker rod centralizer | Olegario Rivas | 1990-04-03 |
| 4871020 | Sucker rod centralizer | Olegario Rivas | 1989-10-03 |
| 4793412 | Centralizer for a polished bar and/or a substance pump piston stem | Olegario Rivas | 1988-12-27 |
| 4750865 | Subsurface stuffing box assembly | Olegario Rivas | 1988-06-14 |