Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4428343 | Tip-in knock eliminating spark timing control | John F. Schweikert, Edward E. Durham | 1984-01-31 |
DG
David Grossman
Overall (All Time): #4,028,685 of 4,157,543Top 100%
1
Patents All Time