Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10100634 | Devices and methods to communicate information from below a surface cement plug in a plugged or abandoned well | Sushant Dutta, Douglas J. Lehr, Bennett M. Richard, Michael H. Johnson, John D. Macpherson | 2018-10-16 |