Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909202 | Frustoconical valve stem sealing element | J. Dudley Binford, David F. Fiedler, Ivan J. Bruns | 1990-03-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909202 | Frustoconical valve stem sealing element | J. Dudley Binford, David F. Fiedler, Ivan J. Bruns | 1990-03-20 |