Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10462891 | Cost effective cartridge for a plasma arc torch | Zheng Duan, Mahyar Esmaili, Mike Kornprobst, Brett A. Hansen, Garrett Quillia | 2019-10-29 |
| 10335888 | Swirl ring and contact element for a plasma arc torch cartridge | Jesse A. Roberts, Zheng Duan, Michael Scheller, David Agan, Steven Moody +2 more | 2019-07-02 |
| 10321551 | Cost effective cartridge for a plasma arc torch | Zheng Duan, Mahyar Esmaili, Mike Kornprobst, Brett A. Hansen, Garrett Quillia | 2019-06-11 |