Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422359 | Tomographic refractive index profile evaluation of non-symmetrical glass fiber preforms and fibers themselves | Maximilian Schmitt | 2025-09-23 |
| 11811453 | Upward collapse process and apparatus for making glass preforms | Qiulin Ma, Kai Huei Chang, Evan P. Green, James E. Beavers, Jr. | 2023-11-07 |
| 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 |