Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7905844 | Disposable transducer seal | Charles S. Desilets, Jens U. Quistgaard, Gregory P. Darlington | 2011-03-15 |
| 7311679 | Disposable transducer seal | Charles S. Desilets, Jens U. Quistgaard, Gregory P. Darlington | 2007-12-25 |
| 5221089 | Golf swing training aid kit and method | — | 1993-06-22 |
| 4838214 | Internal combustion engine assembly | — | 1989-06-13 |
| 4544021 | Method and apparatus for extracting heat from a natural water source | — | 1985-10-01 |
| 4217865 | Internal combustion engine | — | 1980-08-19 |
| 4191018 | Fluid transmission | — | 1980-03-04 |