Issued Patents 2018
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10082211 | Inverted element valve | — | 2018-09-25 |
| 10066453 | Self locking plug seat, system and method | — | 2018-09-04 |
| 10066478 | Indicating apparatus, system, and method | James A. Smith, Robert S. O'Brien | 2018-09-04 |
| 9938789 | Motion activated ball dropping tool | William B. Handy | 2018-04-10 |
| 9932823 | Downhole system having selective locking apparatus and method | James A. Smith | 2018-04-03 |
| 9868258 | Manufactured ported mandrel and method for making same | — | 2018-01-16 |