Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877542 | Thermal insulating fluid | Jesus R. Lon, Geza N. Zirczy | 1989-10-31 |
| 4871020 | Sucker rod centralizer | Alejandro Newski | 1989-10-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877542 | Thermal insulating fluid | Jesus R. Lon, Geza N. Zirczy | 1989-10-31 |
| 4871020 | Sucker rod centralizer | Alejandro Newski | 1989-10-03 |