Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867197 | High pressure valve | Andrew M. Ritter, James W. Williams | 1989-09-19 |
| 4343332 | Line blind | James W. Williams | 1982-08-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867197 | High pressure valve | Andrew M. Ritter, James W. Williams | 1989-09-19 |
| 4343332 | Line blind | James W. Williams | 1982-08-10 |