Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11820691 | Manufacturing apparatus and manufacturing method for optical fiber porous preform | Tatsuyuki Higashizawa, Seiichi Shinada | 2023-11-21 |
| 11802104 | Method for preparation of acetoacetylated polyols | Anja Bierstedt, Leo Schmid, Maximilian Kuehnle, Ulrich Mayerhoeffer, Ellen Klegraf | 2023-10-31 |
| 11565964 | Method of manufacturing porous glass preform for optical fiber | Seiichi Shinada | 2023-01-31 |