Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9757844 | One-way wrench having a catching device with two catches and a catch holder and having differential teeth | — | 2017-09-12 |
| 9162346 | Multiple size socket | — | 2015-10-20 |
| 8893590 | Ratchet wrench with adjustable clamping size | — | 2014-11-25 |
| 8887600 | Anti-abrasion open end quick turn wrench | — | 2014-11-18 |
| 8408388 | Locking structure for a tool box | — | 2013-04-02 |
| 7147000 | Covering device for drain | Hsing Hung, Hao-Lun Hung | 2006-12-12 |
| 6536611 | Wrench suspension rack assembly | — | 2003-03-25 |
| D465977 | Wrench | — | 2002-11-26 |
| D465707 | Wrench | — | 2002-11-19 |
| 6360892 | Wrench support rack assembly | — | 2002-03-26 |
| D446650 | Tool box | — | 2001-08-21 |
| D441625 | Wrench | — | 2001-05-08 |
| D435411 | Wrench | — | 2000-12-26 |
| D433897 | Wrench | — | 2000-11-21 |
| D424897 | Wrench | — | 2000-05-16 |