Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9752572 | Variable flow hydraulic machine | Paul Shepherd, Steven W. Hodge | 2017-09-05 |
| 5112204 | Oscillatory rotating engines with rotor speed control | — | 1992-05-12 |
| 5108351 | Belt drives | — | 1992-04-28 |
| 5092195 | Balancers | — | 1992-03-03 |
| 5080053 | Rotary drives | — | 1992-01-14 |
| 5074582 | Vehicle suspension system | — | 1991-12-24 |
| 5072653 | Piston biased to one side to cover ring gap | — | 1991-12-17 |
| 5070765 | Torque transfer mechanism | — | 1991-12-10 |
| 5032069 | Rotary position displacement pump or motor | — | 1991-07-16 |
| 5016581 | Valve mechanisms | — | 1991-05-21 |
| 5013288 | Transmission systems | — | 1991-05-07 |
| 5009114 | Mechanism for transmitting rotational motion from one shaft to another | — | 1991-04-23 |
| 4995279 | Transmission systems | — | 1991-02-26 |
| 4970995 | Internal combustion engines | — | 1990-11-20 |
| 4961408 | Pistons for reciprocating machines | — | 1990-10-09 |
| 4958531 | Mechanism for transmitting rotational motion from one shaft to another | — | 1990-09-25 |
| 4954735 | Linear actuator | — | 1990-09-04 |
| 4926811 | Internal combustion engines | — | 1990-05-22 |
| 4924730 | Transmission systems | — | 1990-05-15 |
| 4924824 | Two stroke engines | — | 1990-05-15 |
| 4909206 | Internal combustion engines | — | 1990-03-20 |
| 4898130 | Valve mechanisms | — | 1990-02-06 |
| 4898042 | Rotary drives | — | 1990-02-06 |
| 4870872 | Cam mechanisms | — | 1989-10-03 |
| 4869215 | Cam mechanisms | — | 1989-09-26 |