Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6434939 | Rotary piston charger | — | 2002-08-20 |
| 6263841 | Two stroke engine having reduced emissions | — | 2001-07-24 |
| 5857323 | Rocket engine burner with porous metal injector for throttling over a large thrust range | Alvin L. Murray | 1999-01-12 |
| 5415078 | Reciprocating piston machine | — | 1995-05-16 |
| 5010730 | Gas-fed hybrid propulsion system | William H. Knuth | 1991-04-30 |
| 4901525 | Booster-sustainer rocket engine and method | William H. Knuth | 1990-02-20 |
| 4481775 | Stored energy power generating system | — | 1984-11-13 |
| 4292050 | Curved duct separator for removing particulate matter from a carrier gas | Hans D. Linhardt | 1981-09-29 |