Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434163 | Variable diameter seal for optical preform furnace | — | 2022-09-06 |
| 11405107 | Upward collapse process and apparatus for making glass preforms | Qiulin Ma, Kai Huei Chang, Evan P. Green, James E. Beavers, Jr. | 2022-08-02 |