Kao; Chih-Chen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kao; Chih-Chen.The latest application filed is for "folding knife having locking function".
- Kao; Chih-Chen - Taoyuan TW
- KAO; Chih-Chen - Taoyuan City TW
| Patent | Date |
|---|---|
| Folding knife having locking function Grant 10,035,271 - Kao July 31, 2 | 2018-07-31 |
| Folding Knife Having Locking Function App 20180133907 - KAO; Chih-Chen | 2018-05-17 |
| Folding Knife With Assisted Opening Function App 20170312925 - KAO; Chih-Chen | 2017-11-02 |
| Lockback folding knife with safety mechanism Grant 9,751,222 - Kao September 5, 2 | 2017-09-05 |
| Lockback Folding Knife With Safety Mechanism App 20170136634 - KAO; Chih-Chen | 2017-05-18 |
| Demolition utility tool Grant 9,533,178 - Kao January 3, 2 | 2017-01-03 |
| Demolition Utility Tool App 20160158583 - KAO; Chih-Chen | 2016-06-09 |
| Multifunction pry bar Grant D753,456 - Kao April 12, 2 | 2016-04-12 |
| Folding knife with safe pushing mechanism Grant 9,302,399 - Kao April 5, 2 | 2016-04-05 |
| Folding Knife With Safe Pushing Mechanism App 20150209967 - KAO; Chih-Chen | 2015-07-30 |
| Assisted Folding Knife With Handle Having Poking Element App 20130067750 - KAO; Chih-Chen | 2013-03-21 |
| Folding knife having a poking element Grant 8,020,302 - Kao September 20, 2 | 2011-09-20 |
| Foldable knife having switch element Grant 7,886,444 - Kao February 15, 2 | 2011-02-15 |
| Folding knife with a hollow handle for fastening an item therein Grant 7,721,448 - Kao May 25, 2 | 2010-05-25 |
| Folding knife Grant 7,600,322 - Kao October 13, 2 | 2009-10-13 |
| Folding knife with turning device on knife handle App 20090217533 - Kao; Chih-Chen | 2009-09-03 |
| Folding knife with a hollow handle for fastening an item therein App 20090193663 - Kao; Chih-Chen | 2009-08-06 |
| Folding knife with turning device on knife handle App 20090183375 - Kao; Chih-Chen | 2009-07-23 |
| Foldable knife having switch element App 20090183374 - Kao; Chih-Chen | 2009-07-23 |
| Folding knife having a poking element App 20090126200 - Kao; Chih-Chen | 2009-05-21 |
| Folding knife App 20090013537 - Kao; Chih-Chen | 2009-01-15 |
| Folding knife App 20080295338 - KAO; Chih-Chen | 2008-12-04 |
| Foldable knife App 20080276462 - Kao; Chih-Chen | 2008-11-13 |
| Folding knife App 20080276463 - Kao; Chih-Chen | 2008-11-13 |
| Folding knife with safety device Grant 7,165,329 - Kao January 23, 2 | 2007-01-23 |
| Knife App 20060288585 - Kao; Chih-Chen | 2006-12-28 |
| Folding knife App 20060168817 - Kao; Chih-Chen | 2006-08-03 |
| Folding knife with safety device App 20060162168 - Kao; Chih-Chen | 2006-07-27 |
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