Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6327900 | Oil life monitor for diesel engines | Ellen S. Schwartz, Nshan Hamparian, Michael Jacek, Joseph M. Stempnik, Scott John Fletcher | 2001-12-11 |
JD
John E. Mc Donald
Overall (All Time): #3,601,998 of 4,157,543Top 90%
1
Patents All Time