Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4667968 | Dual-lip grease-retaining and dirt-excluding shaft seal | Gerald P. Pichler, David R. Brooks | 1987-05-26 |
| 4513976 | Rotating-lip grease seal | Gustavus A. Bentley, Gerald P. Pichler | 1985-04-30 |