Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7614284 | Oil life monitoring system for a diesel engine | Matthew J. Snider, David P. Quigley, Robert T. Stockwell, Steven J. Andrasko | 2009-11-10 |
RB
Richard A. Barkman
Overall (All Time): #3,340,074 of 4,157,543Top 85%
1
Patents All Time