Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5586749 | Composite polyethylene and transition valve | Richard W. Conley, James R. Daniels | 1996-12-24 |
| 4231549 | Valve stem and valve disc connection for a diaphragm valve | — | 1980-11-04 |