Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5127472 | Indicating ball catcher | Brock Watson, Joseph S. Squyres, Alfred H. Jones, William Jeffrey May | 1992-07-07 |
| 5117910 | Packer for use in, and method of, cementing a tubing string in a well without drillout | John T. Brandell | 1992-06-02 |
| 4917184 | Cement head and plug | Morris G. Baldridge, David D. Szarka, Darrell Fontenot | 1990-04-17 |
| 4858687 | Non-rotating plug set | Brock Watson | 1989-08-22 |
| 4836279 | Non-rotating plug | — | 1989-06-06 |