Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11828117 | High-pressure drilling assembly | Phillip Bailey, Daniel Nobre, Nalin Weerasinghe | 2023-11-28 |
| 6309159 | Self drilling roof bolt | Steven Weaver, Michael McLean | 2001-10-30 |
EJ
Eric Johnson
Sandvik Ab: 1 patents #252 of 518Top 50%
Overall (All Time): #1,828,014 of 4,157,543Top 45%
2
Patents All Time