Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10215004 | Modular plunger for a hydrocarbon wellbore | — | 2019-02-26 |
| 4851836 | Audio-tactile pedestrian push button signalling system | Barrie Holst | 1989-07-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10215004 | Modular plunger for a hydrocarbon wellbore | — | 2019-02-26 |
| 4851836 | Audio-tactile pedestrian push button signalling system | Barrie Holst | 1989-07-25 |