Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10337278 | Method and apparatus for cementing while running casing in a well bore | — | 2019-07-02 |
| 9957773 | Method and apparatus for cementing while running casing in a well bore | — | 2018-05-01 |
| 9598925 | Method and apparatus for cementing while running casing in a well bore | — | 2017-03-21 |
| 8561700 | Method and apparatus for cementing while running casing in a well bore | — | 2013-10-22 |
| 7980313 | Method and apparatus for catching a pump-down plug or ball | — | 2011-07-19 |
| 6237687 | Method and apparatus for placing a gravel pack in an oil and gas well | Roger Trudeau, John Tims Red | 2001-05-29 |
| 4484625 | Well casing perforated zone washing apparatus | — | 1984-11-27 |