Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10767445 | Valve assembly for downhole pump of reciprocating pump system | John Edward Stachowiak, Jr., Santhosh Ramaswamy | 2020-09-08 |
| 10731446 | Diversion plunger for reciprocating rod pump | John Edward Stachowiak, Jr., Doug Hebert | 2020-08-04 |