Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7871240 | Helical spring damper | W. Clark Dean | 2011-01-18 |
DZ
David J. Zawilinski
Overall (2011): #318,062 of 364,097Top 90%
1
Patents 2011