Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4905766 | Adapter for plastic pipe | William Dietz | 1990-03-06 |
| 4665937 | Ball valve and method for assembling same | — | 1987-05-19 |
| 4327895 | Ball valve | James J. Blumenkranz | 1982-05-04 |