Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12146043 | Low density cellular PVC boards with sealed edges | — | 2024-11-19 |
| D993462 | Construction siding | Tzy-Cherng Jan, Richard Ma | 2023-07-25 |
| 10508456 | PVC seam plate | Richard Ma | 2019-12-17 |
| 10392489 | Method of making a low density cellular PVC boards with sealed edges | — | 2019-08-27 |
| 6759114 | Light weight board of improved surface flatness and process for production thereof | Phillip Wu, Yao Cheng, Jyh-yao Raphael Li | 2004-07-06 |