Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5503408 | Lip seal for a rotary shaft | Curtis B. Hemann, Lucyna Heyduk, John Crotser | 1996-04-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5503408 | Lip seal for a rotary shaft | Curtis B. Hemann, Lucyna Heyduk, John Crotser | 1996-04-02 |