Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074362 | Multi-blade utility knife | Zheng Wang | 2011-12-13 |
| 8028420 | Sliding cutting tool | Zheng Wang | 2011-10-04 |
| 7946198 | Ratcheting driver with helical drive | Hua An Xu | 2011-05-24 |