Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10634089 | Diesel piston with sharp-step profile | Vicente Domenech-Llopis, Richard Curwood Peterson, Alberto Lorenzo Vassallo | 2020-04-28 |
| 7389764 | Low emissions diesel piston | David D. Wickman, Shengming Chang | 2008-06-24 |
| 5237972 | Two-stage cycle engine and combustion chamber | Edward G. Groff, Keith Meintjes | 1993-08-24 |
| 4955338 | Engine and high turbulence piston therefor | Roger B. Krieger, Keith Meintjes, Edward G. Groff | 1990-09-11 |