| D943266 |
Umbrella |
— |
2022-02-15 |
| D943265 |
Umbrella |
— |
2022-02-15 |
| 9657538 |
Methods of mechanized and automated tripping of rods and tubulars |
Derrek Yorga, Derrick Jackson, Dave Richard, Minhao Yin, Harold James Miller |
2017-05-23 |
| 9611707 |
Tong system for tripping rods and tubulars |
Derrek Yorga, Derrick Jackson, Dave Richard, Minhao Yin, Harold James Miller |
2017-04-04 |
| 9605498 |
Rod and tubular racking system |
Derrek Yorga, Derrick Jackson, Dave Richard, Minhao Yin, Harold James Miller |
2017-03-28 |
| 9562406 |
Mechanized and automated well service rig |
Derrek Yorga, Derrick Jackson, Dave Richard, Minhao Yin, Harold James Miller |
2017-02-07 |
| 9470050 |
Mechanized and automated catwalk system |
Derrek Yorga, Derrick Jackson, Dave Richard, Minhao Yin, Harold James Miller |
2016-10-18 |
| 9458683 |
Mechanized and automated well service rig system |
Derrek Yorga, Derrick Jackson, Dave Richard, Minhao Yin, Harold James Miller |
2016-10-04 |
| 4804017 |
Brake bleeder valve apparatus having integral check valve and method for bleeding brakes |
— |
1989-02-14 |
| 4709722 |
Valve apparatus for crankcase oil drainage |
— |
1987-12-01 |
| 4372068 |
Rechargeable transparent slide viewer apparatus |
Frederick A. Major, deceased |
1983-02-08 |
| 4190356 |
Photographic easel apparatus |
— |
1980-02-26 |