Chen; Tsai-Ching
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chen; Tsai-Ching.The latest application filed is for "tool bit adapter having a magnetic attraction effect".
- Chen; Tsai-Ching - Changhua TW
- Chen; Tsai-Ching - Chang Hua Hsien TW
- Chen; Tsai-Ching - Fu Hsing Shiang TW
- Chen; Tsai-Ching - Fu Hsing TW
- Chen; Tsai-Ching - Fu Hsing Hsiang Chang Hua Hsien TW
- Chen; Tsai-Ching - Pu Hsing Hsiang Chang Hua Hsien TW
- Chen; Tsai-Ching - Lu Gang Chen Chang Hua Hsien TW
- Chen; Tsai-Ching - Taichung TW
- Chen; Tsai-Ching - Fu Shing Hsiang Chang Hua. TW
| Patent | Date |
|---|---|
| Tool box Grant D846,278 - Chen | 2019-04-23 |
| Tool Bit Adapter Having A Magnetic Attraction Effect App 20180354105 - CHEN; Tsai-Ching | 2018-12-13 |
| Push-button tool box with swing seat Grant 9,827,664 - Chen November 28, 2 | 2017-11-28 |
| Tool bit adapter having a position-limit rod Grant 9,381,627 - Chen July 5, 2 | 2016-07-05 |
| Tool Bit Adapter App 20150202751 - CHEN; Tsai-Ching | 2015-07-23 |
| Tool Bit Adapter Having A Position-limit Rod App 20150202689 - CHEN; TSAI-CHING | 2015-07-23 |
| Toolbox Grant D715,547 - Chen October 21, 2 | 2014-10-21 |
| Screwdriver having a removable rod member Grant 8,826,781 - Chen September 9, 2 | 2014-09-09 |
| Tool box Grant D702,438 - Chen April 15, 2 | 2014-04-15 |
| Toolbox Grant D691,371 - Chen October 15, 2 | 2013-10-15 |
| Rotary toolbox Grant 8,397,912 - Chen March 19, 2 | 2013-03-19 |
| Multi-angle hand tool Grant 8,342,062 - Chen , et al. January 1, 2 | 2013-01-01 |
| Screwdriver Having A Removable Rod Member App 20120285299 - CHEN; Tsai-Ching | 2012-11-15 |
| Hand Tool App 20120272795 - Chen; Tsai-Ching | 2012-11-01 |
| Toolbox App 20120211384 - CHEN; Tsai-Ching | 2012-08-23 |
| Handlebar grip for hand tool Grant D661,569 - Chen June 12, 2 | 2012-06-12 |
| Multi-angle Hand Tool App 20110146459 - Chen; Tsai-Ching ; et al. | 2011-06-23 |
| Screwdriver kit Grant 7,950,311 - Chen May 31, 2 | 2011-05-31 |
| Hand Tool App 20110017029 - Chen; Tsai-Ching | 2011-01-27 |
| Chuck Grant 7,823,890 - Chen November 2, 2 | 2010-11-02 |
| Screwdriver Kit App 20100108562 - Chen; Tsai-Ching | 2010-05-06 |
| Screwdriver Grant D601,399 - Chen October 6, 2 | 2009-10-06 |
| Toolbox Grant D579,204 - Chen October 28, 2 | 2008-10-28 |
| Extension Chuck Tool App 20080179841 - Chen; Tsai-Ching | 2008-07-31 |
| Toolbox Grant D571,552 - Chen June 24, 2 | 2008-06-24 |
| Chuck App 20080100005 - Chen; Tsai-Ching | 2008-05-01 |
| Toolbox App 20070272572 - Chen; Tsai-Ching | 2007-11-29 |
| Tool holder Grant D555,354 - Chen November 20, 2 | 2007-11-20 |
| Toolbox Grant D537,253 - Chen February 27, 2 | 2007-02-27 |
| Toolbox Grant 7,168,559 - Chen January 30, 2 | 2007-01-30 |
| Toolbox App 20060207903 - Chen; Tsai-Ching | 2006-09-21 |
| Toolbox App 20060016706 - Chen; Tsai-Ching | 2006-01-26 |
| Toolbox Grant 6,942,095 - Chen September 13, 2 | 2005-09-13 |
| Chuck apparatus Grant 6,874,791 - Chen , et al. April 5, 2 | 2005-04-05 |
| Chuck device Grant 6,860,489 - Chen March 1, 2 | 2005-03-01 |
| Chuck apparatus App 20040232631 - Chen, Tsai-Ching ; et al. | 2004-11-25 |
| Toolbox App 20040188279 - Chen, Tsai-Ching | 2004-09-30 |
| Chuck device App 20040188959 - Chen, Tsai-Ching | 2004-09-30 |
| Connection of tool with tool bit App 20040104545 - Chen, Tsai-Ching | 2004-06-03 |
| Chuck device for miniature tool bits App 20040026878 - Chen, Tsai-Ching ; et al. | 2004-02-12 |
| Self-opening tool box App 20030226779 - Chen, Tsai-Ching | 2003-12-11 |
| Tool bit holding device with an improved retaining effect Grant 6,644,150 - Chen November 11, 2 | 2003-11-11 |
| Chuck device for miniature tool bits Grant 6,637,755 - Chen , et al. October 28, 2 | 2003-10-28 |
| Chuck Device For Miniature Tool Bits App 20030178794 - Chen, Tsai-Ching ; et al. | 2003-09-25 |
| Chuck Grant D479,253 - Chen September 2, 2 | 2003-09-02 |
| Tool bit holding device with an improved retaining effect App 20030140744 - Chen, Tsai-Ching | 2003-07-31 |
| Chuck device for tools Grant 6,325,393 - Chen , et al. December 4, 2 | 2001-12-04 |
| Ratchet transmission control mechanism for a ratcheting tool Grant 6,206,160 - Chen March 27, 2 | 2001-03-27 |
| Tool holder Grant 6,134,788 - Chen , et al. October 24, 2 | 2000-10-24 |
| Handle of tool Grant D422,870 - Chen April 18, 2 | 2000-04-18 |
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