Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11076995 | Cold-drawn polyolefin copolymers cord for earplug | Feng Cai, Robert C. Coffin | 2021-08-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11076995 | Cold-drawn polyolefin copolymers cord for earplug | Feng Cai, Robert C. Coffin | 2021-08-03 |