Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5593135 | Precise throttling ball valve | Yasunori Kuroki | 1997-01-14 |
| 5156185 | Position indicator apparatus for rising stem valve | — | 1992-10-20 |
| 5139230 | Travel stop assembly for valves | — | 1992-08-18 |
| 4915125 | Valve stem extension assembly | — | 1990-04-10 |