Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8991523 | Rolling cutter assembled directly to the bit pockets | Yuelin Shen, Youhe Zhang, Yuri Burhan, Michael A. Siracki, Bala Durairajan +2 more | 2015-03-31 |
| 8337085 | Air circulation ports in rotary rock bit journal bearing | Jeremy Marcus, Vincent Shotton, Sameer Bhoite | 2012-12-25 |