Inventor · disambiguated record
Chi-Chang Cheng
Also filed as: CHENG CHI · CHENG CHI-CHANG
8 granted patents·6 pending applications·66 citations·filing 2006–2017
85Inventor score
Files withCHENG CHI-CHANG6CHI MEI COMM SYSTEMS INC2NAZHIYUAN TECH TANGSHAN LLC2BU SHANG ENTPR CO LTD1HSU YUAN-FANG1
Top patents by PatentIndex Score
14 records- 0180US8768585B2Shift control system for power-assisted bicycleCHENG CHI-CHANG·Filed 2012·Granted Jul 1, 2014·15 cites·21 claims
- 0277US8886426B2Power-assisted bicycle with a gear shift smoothening functionCHENG CHI-CHANG·Filed 2012·Granted Nov 11, 2014·13 cites·21 claims
- 0373US8532857B2Power-assisted system for bicycleHSU YUAN-FANG·Filed 2011·Granted Sep 10, 2013·8 cites·5 claims
- 0472US9008931B2Bicycle gear shift control system capable of avoiding frequent gear shiftingCHENG CHI-CHANG·Filed 2012·Granted Apr 14, 2015·9 cites·4 claims
- 0567USD741850SComputing deviceINVENTEC PUDONG TECH CORP·Filed 2014·Granted Oct 27, 2015·14 cites·1 claims
- 0663US8977450B2Automatic gear-shifting bicycle with optimal shift timingCHENG CHI-CHANG·Filed 2012·Granted Mar 10, 2015·5 cites·19 claims
- 0762US7701727B2Portable electronic deviceCHI MEI COMM SYSTEMS INC·Filed 2008·Granted Apr 20, 2010·2 cites·4 claims
- 0850US2015342147A1Pet carrierCHENG CHI-CHANG·Filed 2014·Application pending·0 cites
- 0940US2009152083A1Keypad assembly for electronic deviceCHI MEI COMM SYSTEMS INC·Filed 2008·Application pending·0 cites
- 1037US10174910B2Method for making reflective and self-luminous substrateBU SHANG ENTPR CO LTD·Filed 2017·Granted Jan 8, 2019·0 cites·12 claims
- 1136US2012325039A1Derailleur for electric bicycleCHENG CHI-CHANG·Filed 2012·Application pending·0 cites
- 1232US2006234522A1Button module and electronic device using the sameINNOLUX DISPLAY CORP·Filed 2006·Application pending·0 cites
- 1331US2017219391A1Pneumatic Sensor and Electronic CigaretteNAZHIYUAN TECH (TANGSHAN) LLC·Filed 2016·Application pending·0 cites
- 1428US2018164134A1Pneumatic sensor in electronic cigarette, device for processing airflow, and electronic cigaretteNAZHIYUAN TECH TANGSHAN LLC·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →