Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10490579 | Mask having intermediate light-transmitting sub-sections of stepwisely increased transmission rates | — | 2019-11-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10490579 | Mask having intermediate light-transmitting sub-sections of stepwisely increased transmission rates | — | 2019-11-26 |