Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4282837 | Two-cycle diesel engine with piston ring stabilizing accumulator volume | Robert B. McClure | 1981-08-11 |
RH
Robert L. Holtman
Overall (All Time): #4,094,569 of 4,157,543Top 100%
1
Patents All Time