Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679756 | Optical thermoplastic thiourethane-urethane copolymers | Zhenya Zhu, Brian G. Risch, Zhou Yang | 1997-10-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679756 | Optical thermoplastic thiourethane-urethane copolymers | Zhenya Zhu, Brian G. Risch, Zhou Yang | 1997-10-21 |