Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11614755 | Vent valve for an inner floating roof | Shu-Wen Yen | 2023-03-28 |
| 11352201 | Peripheral sealing assembly for an internal floating roof | Shu-Wen Yen | 2022-06-07 |
| 11187003 | Floating roof assembly | Shu-Wen Yen | 2021-11-30 |
| D929210 | Connecting frame | Shu-Wen Yen | 2021-08-31 |