Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10378312 | Tubing retrievable injection valve assembly | Thomas G. Hill, Jr., Robert C. Henschel, Shane W. Pfaff | 2019-08-13 |
| 10030476 | Tubing retrievable injection valve assembly | Thomas G. Hill, Jr., Robert C. Henschel, Shane W. Pfaff | 2018-07-24 |
| 9334709 | Tubing retrievable injection valve assembly | Thomas G. Hill, Jr., Robert C. Henschel, Shane W. Pfaff | 2016-05-10 |
| 6991040 | Method and apparatus for locking out a subsurface safety valve | Thomas G. Hill, Jr., Thomas M. Deaton, Neil A. A. Simpson | 2006-01-31 |