Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8763496 | Method and apparatus for installation and removal of a valve cover | Larry Don Case, Randall Ferrain Weaver | 2014-07-01 |
| 8672295 | Gate valve | Samir Dhawan, David Kay, Randall Ferrain Weaver, Neil Colin Kennedy | 2014-03-18 |
| 8534185 | Reciprocating pump having a pressure compensated piston | Andrew Dale Riley | 2013-09-17 |
| 8529222 | Surface pump assembly having a thrust chamber with a telescoping shaft | Timothy D. Burns, Sr. | 2013-09-10 |
| 8337180 | Mud pump cylinder assembly and liner system | Randall Ferrain Weaver | 2012-12-25 |