Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5161574 | Maximum operation angle single plug and puppet type retention valves | Jesus E. Chacin | 1992-11-10 |
| 5131466 | Self actuated intake valve assembly for inlet subsurface reciprocating pumps | Jesus E. Chacin U. | 1992-07-21 |
| 5100299 | Process for pumping a two phase mixture | Jesus E. Chacin U. | 1992-03-31 |
| 5062451 | Maximum flow single plug retention valve | Jesus E. Chacin U. | 1991-11-05 |
| 5062480 | Self actuated intake valve assembly for insert subsurface reciprocating pumps | Jesus E. Chacin U. | 1991-11-05 |
| 5048604 | Sucker rod actuated intake valve assembly for insert subsurface reciprocating pumps | Jesus E. Chacin U. | 1991-09-17 |