Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12180106 | Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber | Manuel Rosenberger, Jan Vydra, Kai Huei Chang | 2024-12-31 |
| 11840472 | Elongation method and preform for producing an optical glass component | Kai Huei Chang, Evan P. Green | 2023-12-12 |
| 11811453 | Upward collapse process and apparatus for making glass preforms | Kai Huei Chang, Evan P. Green, James E. Beavers, Jr., Carl W. Ponader | 2023-11-07 |
| 11649185 | Automated large outside diameter preform tipping process and resulting glass preforms | Kai Huei Chang | 2023-05-16 |
| 11618708 | Elongation method and preform for producing an optical glass component | Kai Huei Chang, Evan P. Green | 2023-04-04 |
| 11454580 | Method for preform or tube drawing based on its viscosity | Georges Levon FATTAL, James E. Beavers, Jr., Kai Huei Chang, Evan P. Green | 2022-09-27 |
| 11405107 | Upward collapse process and apparatus for making glass preforms | Kai Huei Chang, Evan P. Green, James E. Beavers, Jr., Carl W. Ponader | 2022-08-02 |
| 10388028 | Apparatus and method for measurement of transparent cylindrical articles | Evan P. Green, James E. Beavers, Jr. | 2019-08-20 |
| 10370283 | Method for forming a glass preform | Jong Won Lee, Kai Huei Chang | 2019-08-06 |