Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7912620 | Turbocharged internal combustion engine | Pierre Bernard French, Mark Firth | 2011-03-22 |
| 5146883 | Piston and connecting rod assembly | Peter Reipert, Arno Kolb, Siegfried Mielke, Tjark Coners | 1992-09-15 |
| 5033426 | Radial combustion seal | Steven G. Barnes | 1991-07-23 |
| 4711210 | Compression braking system for an internal combustion engine | — | 1987-12-08 |
| 4520627 | Turbocharged internal combustion engine | John H. Stang, Lewis W. Cummings, Richard E. Glasson, David A. Ruthmansdorfer | 1985-06-04 |
| 4348991 | Dual coolant engine cooling system | John H. Stang, David A. Ruthmansdorfer | 1982-09-14 |