Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12270256 | Refreshable polycrystalline diamond compact (PDC) drill bits | Guodong Zhan, Abdulwahab S. Al-Johar | 2025-04-08 |
| 12188342 | Intelligent drilling system with external stationary sensing shield | Guodong Zhan, Chinthaka Pasan Gooneratne, Abdulwahab Aljohar, Timothy E. Moellendick | 2025-01-07 |