Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11097311 | Hybrid layered structure, method and system including same | Li-Ying Yang, Yan Zheng, Brian Duffy | 2021-08-24 |
| 11085189 | Impact resistant roofing systems and methods | Yan Zheng, Adem Chich, Eric R. Anderson, Walter Zarate | 2021-08-10 |