Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5947443 | Plug valve | Thomas R. Shellenbarger | 1999-09-07 |
| 5944991 | Pipeline strainer | Thomas R. Shellenbarger | 1999-08-31 |
| 5207459 | Transition coupling for pipes | — | 1993-05-04 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5947443 | Plug valve | Thomas R. Shellenbarger | 1999-09-07 |
| 5944991 | Pipeline strainer | Thomas R. Shellenbarger | 1999-08-31 |
| 5207459 | Transition coupling for pipes | — | 1993-05-04 |