Issued Patents All Time
Showing 51–51 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4607711 | Rotary drill bit with cutting elements having a thin abrasive front layer | — | 1986-08-26 |
DZ
Djurre Hans Zijsling
Enventure Global Technology: 5 patents #13 of 63Top 25%
Overall (All Time): #52,725 of 4,157,543Top 2%
51
Patents All Time