Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5125226 | Coupling ducts or the like | — | 1992-06-30 |
| 4702071 | Inlet particle separator | John E. Jenkins, Michael Buller | 1987-10-27 |
JS
John Sperinck
Overall (All Time): #2,310,260 of 4,157,543Top 60%
2
Patents All Time