Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11274523 | Variable torque flapper valve | James Dan Vick, Jr., Leo G. Collins, Russell Irving Bayh, III, Jimmie R. Williamson, Jr. | 2022-03-15 |
| 11208870 | Flapper valve with beam spring | James Dan Vick, Jr., Leo G. Collins, Russell Irving Bayh, III, Jimmie R. Williamson, Jr. | 2021-12-28 |
| 7597149 | Safety valve with extension springs | Jimmie R. Williamson, Jr., James Dan Vick, Jr. | 2009-10-06 |