Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11220871 | Methods for cleaning drill pipe during trip-out | — | 2022-01-11 |
| 8561726 | Vertical drilling system for controlling deviation | John A. Salzer, III, David Lane Evans, Glenn Patrick Coty | 2013-10-22 |
| 8061451 | Vertical drilling system for controlling deviation | John A. Salzer, III, David Lane Evans, Glenn Patrick Coty | 2011-11-22 |