Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9995140 | Yieldable prop with yieldable insert | Dakota Faulkner, John G. Oldsen, John C. Stankus | 2018-06-12 |
| 6856605 | System and method for controlling an end-user application among a plurality of communication units in a wireless messaging network | Stephen Larghi, Allan D. Angus, Donna Regenbaum | 2005-02-15 |
| 4475737 | Slip spline sealing plug | Jay W. Thorngurgh | 1984-10-09 |