Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6382591 | Plug valve assembly | Robert Joseph Brown, Royce Chaffin, Donnie Ray Hammock, Gerald Patrick McDermott | 2002-05-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6382591 | Plug valve assembly | Robert Joseph Brown, Royce Chaffin, Donnie Ray Hammock, Gerald Patrick McDermott | 2002-05-07 |