Liu; Kuo-Chen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liu; Kuo-Chen.The latest application filed is for "multipurpose holder".
- Liu; Kuo-Chen - Puli Township N/A TW
- Liu; Kuo-Chen - Taichung TW
- Liu; Kuo Chen - Dali TW
- Liu; Kuo-Chen - Taipei TW
- Liu; Kuo-Chen - Taichung City TW
- Liu; Kuo-Chen - Ta Li TW
- Liu; Kuo Chen - Dali City TW
- Liu; Kuo-Chen - Taichung Hsien TW
- Liu; Kuo-Chen - Ta-Li City Taichung TW
- Liu; Kuo Chen - Da Li City Taichung Hsien TW
- Liu; Kuo Chen - Gong Yeh Chu Da Li City TW
| Patent | Date |
|---|---|
| Multipurpose holder Grant 11,359,761 - Liu June 14, 2 | 2022-06-14 |
| Multipurpose Holder App 20210324994 - Liu; Kuo-Chen | 2021-10-21 |
| Device for locking and releasing a screw bit Grant 7,424,841 - Liu September 16, 2 | 2008-09-16 |
| Tool box Grant 7,374,042 - Liu May 20, 2 | 2008-05-20 |
| Opener box Grant 7,360,654 - Liu April 22, 2 | 2008-04-22 |
| Device for locking and releasing a screw bit App 20080072718 - Liu; Kuo-Chen | 2008-03-27 |
| Opener head retainer Grant 7,293,484 - Liu November 13, 2 | 2007-11-13 |
| Magnetic connecting tube for a screwdriver head App 20070234856 - Liu; Kuo-Chen | 2007-10-11 |
| Tool box App 20070023307 - Liu; Kuo Chen | 2007-02-01 |
| Opener Head Retainer App 20060162508 - Liu; Kuo-Chen | 2006-07-27 |
| Ratchet wrench Grant 7,066,054 - Liu June 27, 2 | 2006-06-27 |
| Opener box App 20060118446 - Liu; Kuo-Chen | 2006-06-08 |
| Toolbox screwdriver Grant 7,032,483 - Liu April 25, 2 | 2006-04-25 |
| Toolbox screwdriver App 20050274240 - Liu, Kuo-Chen | 2005-12-15 |
| Bending structure of bendable opener App 20050247155 - Liu, Kuo-Chen | 2005-11-10 |
| Screwdriver handle Grant D510,248 - Liu October 4, 2 | 2005-10-04 |
| Ratchet wrench App 20050204868 - Liu, Kuo-Chen | 2005-09-22 |
| Screwdriver handle Grant D507,733 - Liu July 26, 2 | 2005-07-26 |
| Combination of an electric-powered tool and an illuminating device received in the tool Grant RE38,729 - Liu April 26, 2 | 2005-04-26 |
| Driving tool member having anti-slip device App 20050076749 - Liu, Kuo Chen | 2005-04-14 |
| Tool having a structure for removing damaged screws App 20030136228 - Liu, Kuo Chen | 2003-07-24 |
| Motorized grass shear device App 20020095794 - Liu, Kuo Chen | 2002-07-25 |
| Electronic screwdriver Grant D436,819 - Liu January 30, 2 | 2001-01-30 |
| Combination of an electric-powered tool and an illuminating device received in the tool Grant 6,168,287 - Liu January 2, 2 | 2001-01-02 |
| Tool combination having two sections Grant 5,957,014 - Tseng , et al. September 28, 1 | 1999-09-28 |
| Tool having a rotatable driving stem Grant 5,802,936 - Liu September 8, 1 | 1998-09-08 |
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