Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4249382 | Exhaust gas recirculation system for turbo charged engines | William Brown, Roger W. Johnson | 1981-02-10 |
DE
Duane E. Evans — 1 Patent
Overall (All Time): #4,083,276 of 4,157,543Top 100%
1
Patents All Time