Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401811 | Tool tie-down | — | 2002-06-11 |
| 5842517 | Anti-rotational cementing apparatus | — | 1998-12-01 |
| 5584343 | Method and apparatus for filling and circulating fluid in a wellbore during casing running operations | — | 1996-12-17 |
| 5566772 | Telescoping casing joint for landing a casting string in a well bore | Thomas L. Kelley | 1996-10-22 |
| 5234052 | Cementing apparatus | Frank Cole | 1993-08-10 |
| 5197542 | Well packer | — | 1993-03-30 |
| 5085273 | Casing lined oil or gas well | — | 1992-02-04 |
| 5027894 | Through the tubing bridge plug | Jeffry C. Ehlinger | 1991-07-02 |
| 5024273 | Cementing apparatus and method | Jeffry C. Ehlinger, Frank Cole | 1991-06-18 |
| 4892144 | Inflatable tools | — | 1990-01-09 |
| 4772158 | Method and apparatus for setting inflatable packers in deep water | — | 1988-09-20 |
| 4544165 | Inflatable packer | — | 1985-10-01 |
| 4403660 | Well packer and method of use thereof | — | 1983-09-13 |
| 4225264 | Method and apparatus for coupling engagement of misalignable flanges | — | 1980-09-30 |
| 4183698 | Wiper, grouting seal and diaphragm apparatus | — | 1980-01-15 |