Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11020833 | Turbine driven power unit for a cutting tool | — | 2021-06-01 |
| 10414007 | Turbine driven power unit for a cutting tool | — | 2019-09-17 |
| 10265817 | Turbine driven power unit for a cutting tool | — | 2019-04-23 |
| 9662133 | Jawed tip assembly | Gerald Feuer, Clark B. Foster | 2017-05-30 |
| 8708889 | Jawed trocar assembly | Gerald Feuer, Clark B. Foster | 2014-04-29 |
| 5910996 | Dual audio program system | Philip E. Eggers | 1999-06-08 |
| 5692058 | Dual audio program system | Philip E. Eggers | 1997-11-25 |
| RE33494 | Pick holding arrangements | Leslie W. Hindmarsh, Robert G. Knight | 1990-12-18 |
| 4603911 | Pick holding arrangements | Leslie W. Hindmarsh, Robert G. Knight | 1986-08-05 |