Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10450847 | Subsurface reciprocating pump for gassy and sandy fluids | Jason Bailey, John Edward Stachowiak, Jr. | 2019-10-22 |
| 10385663 | Subsurface pump for use in well artificial lift operations having an interior flow passage of a plunger being in communication with a fluid chamber via a filter | William C. Lane, John Edward Stachowiak, Jr. | 2019-08-20 |