Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10865029 | Packaging bag fresh-keeping exhaust valve structure | Yi-An Chien | 2020-12-15 |
| 10766668 | Dried food fresh-keeping packaging bag structure | Yi-An Chien | 2020-09-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10865029 | Packaging bag fresh-keeping exhaust valve structure | Yi-An Chien | 2020-12-15 |
| 10766668 | Dried food fresh-keeping packaging bag structure | Yi-An Chien | 2020-09-08 |