Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7900717 | Expandable reamers for earth boring applications | Steven R. Radford, Scott Shiquiang Shu, Anton F. Zahradnik | 2011-03-08 |
| 5433275 | Double-threaded anchor tubing assembly | George J. Melenyzer, Kevin O. Trahan | 1995-07-18 |
| 5086845 | Liner hanger assembly | — | 1992-02-11 |
| 5038860 | Hydraulically actuated liner hanger | Robert Magee Shivers, III | 1991-08-13 |
| 4848469 | Liner setting tool and method | James M. Fraser, George J. Melenyzer | 1989-07-18 |
| 4825954 | Liner hanger with improved bite and method | — | 1989-05-02 |