Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11156840 | Optical guide and optical system | Patrice Twardowski, Joël Fontaine | 2021-10-26 |
| 10913103 | Method, module, and apparatus for roll-processing external pipe thread, and external pipe thread production line | Jun Zhou, Yongliang Zhang, Minjun YANG | 2021-02-09 |