Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10716199 | Devices for gas cooling plasma arc torches and related systems and methods | Zheng Duan, Richard R. Gray, Jr. | 2020-07-14 |
| 10582605 | Cost effective cartridge for a plasma arc torch | Zheng Duan, Mahyar Esmaili, Mike Kornprobst, Brett A. Hansen, Garrett Quillia | 2020-03-03 |
| 10542614 | Apparatus and method for securing a plasma torch electrode | Zheng Duan, Peter J. Twarog, Sung Je Kim, Michael F. Kornprobst, Josh Murray +1 more | 2020-01-21 |