Inventor · disambiguated record
Chiu-Man Chang-Kao
Also filed as: CHANG-KAO CHIU-MAN
7 granted patents·4 pending applications·629 citations·filing 1999–2008
90Inventor score
Top patents by PatentIndex Score
11 records- 0196US6637755B2Chuck device for miniature tool bitsCHEN TSAI-CHING·Filed 2002·Granted Oct 28, 2003·114 cites·13 claims
- 0296US6325393B1Chuck device for toolsFiled 2000·Granted Dec 4, 2001·138 cites·20 claims
- 0395US6446341B1Tool holder and tools combinationFiled 2001·Granted Sep 10, 2002·138 cites·20 claims
- 0495US6270085B1Chuck device for tool bitsFiled 1999·Granted Aug 7, 2001·145 cites·4 claims
- 0579US6134788ATool holderFiled 1999·Granted Oct 24, 2000·64 cites·19 claims
- 0675US6490955B2Screwdriver shank with a universal jointFiled 2001·Granted Dec 10, 2002·26 cites·3 claims
- 0745US2009282955A1Driver Bit for Easy Attachment and Detachment with Driver ToolCHANG-KAO CHIU-MAN·Filed 2008·Application pending·0 cites
- 0843US2004026878A1Chuck device for miniature tool bitsFiled 2003·Application pending·0 cites
- 0939US2001020404A1Wrench with reliable sliding movement for a movable jaw thereofFiled 2001·Application pending·0 cites
- 1037US2006016084A1Laser-Based datum instrumentLIAO CHING-LIN·Filed 2004·Application pending·0 cites
- 1136USD476204SWrenchCHANG-KAO CHIU-MAN·Filed 2002·Granted Jun 24, 2003·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →