Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4543981 | Sliding gate valves | Kenneth W. Bates | 1985-10-01 |
| 4457459 | Valve suitable for controlling teeming from furnace tapholes | Kenneth W. Bates, William A. Griffiths | 1984-07-03 |
| 4199085 | Sliding gate valve | Philip Weatherall, Robert D. Hind | 1980-04-22 |