Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162746 | Liquid drains in core-in-shell heat exchanger | Paul R. Davies | 2021-11-02 |
| 11136862 | Behind casing wash and cement | Rick D. Watts, Stein Haavardstein, Lars Hovda, James C. Stevens, Dan Mueller +2 more | 2021-10-05 |