Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11530591 | Large bore plug valve | Brian C. Witkowski, Duc Thanh Tran | 2022-12-20 |
| 11421504 | Hydraulic fracturing system, apparatus, and method | Brian C. Witkowski, Nadiya Fuller, Duc Thanh Tran, Peter Walter | 2022-08-23 |
| 11365819 | Clapper valve | Nadiya Fuller, Brian C. Witkowski | 2022-06-21 |