Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792885 | Method for manufacturing an invisible trademark zipper | Chi Cheng Lu | 2004-09-21 |
| 6352044 | Sewing needle structure for stitching a hidden nylon zipper | — | 2002-03-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792885 | Method for manufacturing an invisible trademark zipper | Chi Cheng Lu | 2004-09-21 |
| 6352044 | Sewing needle structure for stitching a hidden nylon zipper | — | 2002-03-05 |