Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479544 | Pressure actuated pack-off and method | Bobby F. Goad, Gary A. Miller | 1984-10-30 |
| 4450912 | Method and apparatus for well cementing through a tubular member | Lyndon Stone | 1984-05-29 |
| 4442894 | Unitary float valve and wiping plug retainer | Clyde Wainwright | 1984-04-17 |
| 4436151 | Apparatus for well cementing through a tubular member | Lyndon Stone | 1984-03-13 |
| 4413682 | Method and apparatus for installing a cementing float shoe on the bottom of a well casing | Clyde Wainwright | 1983-11-08 |
| 4393931 | Combination hydraulically set hanger assembly with expansion joint | John F. Muse, Bobby F. Goad, Clyde Wainwright | 1983-07-19 |