Issued Patents 2019
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10513904 | Provision of internal lines in a well tool | Christopher L. McDowell | 2019-12-24 |
| 10344562 | Riser annular isolation device | Christopher L. McDowell | 2019-07-09 |
| 10273767 | Bidirectional downhole isolation valve | — | 2019-04-30 |
| 10214999 | Remotely operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell | 2019-02-26 |
| 10180041 | Isolation valve with debris control and flow tube protection | Christopher L. McDowell, Paul L. Smith | 2019-01-15 |