Lee; Chang-Chuan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lee; Chang-Chuan.The latest application filed is for "l-shaped torsional wrench".
- Lee; Chang-Chuan - Taichung N/A TW
- LEE; Chang-Chuan - Taichung City TW
- Lee; Chang Chuan - Nantou TW
- Lee; Chang Chuan - Caotun Township TW
- Lee; Chang Chuan - Nantou County TW
- Lee; Chang Chuan - Nantou County 542 TW
- Lee; Chang Chuan - Tiachung TW
- Lee; Chang-Chuan - Cao Tun Zhen Nan Tou Hsien TW
- Lee; Chang-Chuan - Fu Liao Li Tsao Tun Town TW
- Lee; Chang-Chuan - Taipei TW
| Patent | Date |
|---|---|
| L-shaped torsional wrench Grant 9,149,918 - Lee October 6, 2 | 2015-10-06 |
| L-shaped Torsional Wrench App 20130239761 - LEE; Chang-Chuan | 2013-09-19 |
| Tool kit Grant 7,318,574 - Lee January 15, 2 | 2008-01-15 |
| Ratchet mechanism for hand tools App 20070289414 - Lee; Chang Chuan | 2007-12-20 |
| Rotary wrench structure App 20070256525 - Lee; Chang Chuan | 2007-11-08 |
| Tracing Mechanism Of Torque Adjustable Wrenches App 20070245864 - Lee; Chang Chuan | 2007-10-25 |
| Tracing mechanism of torque adjustable wrenches App 20070245865 - Lee; Chang Chuan | 2007-10-25 |
| Tracing mechanism of torque adjustable wrenches Grant 7,275,467 - Lee October 2, 2 | 2007-10-02 |
| Slide rod with locking unit App 20070199412 - Lee; Chang Chuan | 2007-08-30 |
| Quick release device for extension rod App 20070189847 - Lee; Chang Chuan | 2007-08-16 |
| Rotary wrench Grant 7,246,544 - Lee July 24, 2 | 2007-07-24 |
| Ratchet mechanism for hand tools App 20070101832 - Lee; Chang Chuan | 2007-05-10 |
| Torque screwdriver Grant 7,150,212 - Lee December 19, 2 | 2006-12-19 |
| Pawl structure of a ratchet wrench App 20060236819 - Lee; Chang Chuan | 2006-10-26 |
| Ratchet wrench Grant 7,124,664 - Lee October 24, 2 | 2006-10-24 |
| Ratchet mechanism for ratchet tools App 20060213334 - Lee; Chang Chuan | 2006-09-28 |
| Torque adjustable socket assembly App 20060201282 - Lee; Chang Chuan | 2006-09-14 |
| Torque screwdriver App 20060162510 - Lee; Chang Chuan | 2006-07-27 |
| Tool kit App 20060131472 - Lee; Chang Chuan | 2006-06-22 |
| Detent structure of a torque wrench for adjusting operation angle thereof Grant 7,051,625 - Lee May 30, 2 | 2006-05-30 |
| Pawl mechanism of a ratchet wrench Grant 7,047,842 - Lee May 23, 2 | 2006-05-23 |
| Pawl Mechanism Of A Ratchet Wrench App 20060101952 - Lee; Chang Chuan | 2006-05-18 |
| Torque wrench Grant 6,978,705 - Lee December 27, 2 | 2005-12-27 |
| Ratchet wrench having a pivotal head Grant 6,886,429 - Lee May 3, 2 | 2005-05-03 |
| Socket for a socket wrench Grant D347,983 - Lee June 21, 1 | 1994-06-21 |
| Wrench with telescopic handle Grant 5,193,419 - Lee March 16, 1 | 1993-03-16 |
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