Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690319 | Pneumatic suspension system | Frank Robinson, James William Zehnder, II, William C. Kruckemeyer, Herbert S. Summers, Jay Michael Shores | 1997-11-25 |
| 5678810 | Pneumatic suspension system | Herbert S. Summers, Jay Michael Shores, Frank Robinson, William C. Kruckemeyer | 1997-10-21 |
| 4747475 | Suspension wear compensating shock absorber | Michael David Clark | 1988-05-31 |