Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149857 | Appliance for making isotropically finished seal ring of seal assembly for machine | Bao Feng, Joseph J. Every, Daniel P. Vertenten, John M. Spangler | 2021-10-19 |
| 10927959 | Method and appliance for making isotropically finished seal ring of seal assembly for machine | Bao Feng, Joseph J. Every, Daniel P. Vertenten, John M. Spangler | 2021-02-23 |