Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11142992 | Plug release system | Marcelle H. Hedrick, Joseph Ramirez | 2021-10-12 |
| 11078747 | Mechanism for retaining and releasing pump down plug | Marcelle H. Hedrick, William J. Cauley, Robert Pena, Sean Yakeley | 2021-08-03 |