Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082247 | Split seat gate valve | Alvin A. Kimpel | 1992-01-21 |
| 5020776 | Split seat gate valve | Alvin A. Kimpel | 1991-06-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082247 | Split seat gate valve | Alvin A. Kimpel | 1992-01-21 |
| 5020776 | Split seat gate valve | Alvin A. Kimpel | 1991-06-04 |