Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11231125 | Ball valve with stem-cap engagement | Stephen L. Crawford | 2022-01-25 |
| 11192177 | Automated gate cutting system | Timothy P. Hipp, Kelby Wayne Klink, Donald Johnson | 2021-12-07 |
| 10883624 | Ball valve with visual stem-cap engagement | Stephen L. Crawford | 2021-01-05 |
| 10722941 | Automated gate cutting system | Timothy P. Hipp, Kelby Wayne Klink, Donald Johnson | 2020-07-28 |
| 10502339 | Ball valve with visual stem-cap engagement | Stephen L. Crawford | 2019-12-10 |