Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5752569 | Flow tube for use in an equalizing subsurface safety valve | Rashmi Bhavsar, Thomas G. Hill, Jr. | 1998-05-19 |
| 4595054 | Well lock having retractable no-go dogs | — | 1986-06-17 |