Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11104597 | Glass production device, glass production method, glass supply pipe, and molten glass transport method | Katsutoshi Fujiwara | 2021-08-31 |
| 10974983 | Molten glass stirring device and method for manufacturing glass article | — | 2021-04-13 |