Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10989022 | Big bore running tool quick lock adaptor | Gary Allen Kohn, Carlos Moreno, Ryan T. Humphrey | 2021-04-27 |
| 10513891 | Running tool lock mechanism | Gary Allen Kohn | 2019-12-24 |
| 10053954 | Cementing a liner using reverse circulation | Arthur Stautzenberger, Richard Paul Noffke, David Matus, Ryan T. Humphrey, Stephen Ross Maddux | 2018-08-21 |
| 9869157 | Reverse circulation cementing system for cementing a liner | Emile Edmund Sevadjian, Gary Allen Kohn, Arthur Stautzenberger, Richard Paul Noffke, Grant Lynn Hartman +3 more | 2018-01-16 |
| 6543316 | Ratchet wrench | Nick Savino, David Loftin, Glenn Redding | 2003-04-08 |
| 6101901 | Dual-pawl full engagement reversible ratchet wrench | — | 2000-08-15 |
| 5791206 | Drill pipe handling mechanism | James E. Morris | 1998-08-11 |
| 5343962 | Double rod cylinder feed system | Laszlo Gyongyosi | 1994-09-06 |