Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9359863 | Downhole plug apparatus | Steven G. Streich, Donnie G. Loveday, John T. Brandell, Earl Webb | 2016-06-07 |
| 7644774 | Selectively activated float equipment | Alton Branch, Aimee Greening | 2010-01-12 |
| 7527104 | Selectively activated float equipment | Alton Branch, Aimee Greening | 2009-05-05 |
| 7373973 | Packer element retaining system | Donald R. Smith, Mike Sutton, Tracy Martin | 2008-05-20 |
| 6220349 | Low pressure, high temperature composite bridge plug | Gregory W. Vargus, Donald F. Hushbeck, Kevin T. Berscheidt, Donald R. Smith, Thomas W. Hawkins | 2001-04-24 |