Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10203032 | Updating shifting profiles for adaptive transmissions | Donald G. Levens, Gurjeet Singh, Douglas R. Cecil, Matthew Thomas Trent | 2019-02-12 |
| 6691665 | Dual air induction arrangement | Cape Alan Hall, Lloyd Anthony Bozzi, Takeshi Abe, Vincent Paul Solferino | 2004-02-17 |
| 5996525 | Bellmouth exit angle adapter | — | 1999-12-07 |
| 5905211 | Load monitor sheave | John H. Wiedenheft III | 1999-05-18 |
| 5884877 | Roller excitation device | John H. Wiedenheft, III | 1999-03-23 |
| 4600331 | Swivel coupling | — | 1986-07-15 |
| 4279308 | Surface casing stabilizer and hanger and method of employing the same | by Emma Dee Gray, executrix | 1981-07-21 |
| 4275487 | Well casing spider | Emma D. W. Gray, executrix | 1981-06-30 |
| 4275488 | Combined well casing spider and elevator | by Emma Dee Gray, executrix | 1981-06-30 |