Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9856701 | Rolling cone drill bit having high density cutting elements | Gary R. Portwood, Luca Tedeschi, Giampaolo Ferrari, Joshua Gatell, Allen D. White | 2018-01-02 |
| 9074431 | Rolling cone drill bit having high density cutting elements | Gary R. Portwood, Luca Tedeschi, Giampaolo Ferrari, Josh Gatell, Allen D. White | 2015-07-07 |