Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5488989 | Whipstock orientation method and system | Larry J. Leising | 1996-02-06 |
| 5431219 | Forming casing window off whipstock set in cement plug | Larry J. Leising, Mansour Shaheen | 1995-07-11 |