Inventor · disambiguated record
Yu-Choung Chang
Also filed as: CHANG YU-CHOUNG
21 granted patents·8 pending applications·364 citations·filing 1994–2022
95Inventor score
Top patents by PatentIndex Score
29 records- 0195US7364416B2Scroll type compressor with an enhanced sealing arrangementIND TECH RES INST·Filed 2006·Granted Apr 29, 2008·45 cites·8 claims
- 0295US7207787B2Scroll compressor with backflow-proof mechanismIND TECH RES INST·Filed 2004·Granted Apr 24, 2007·64 cites·31 claims
- 0395US6913448B2Load-regulating device for scroll type compressorsIND TECH RES INST·Filed 2002·Granted Jul 5, 2005·62 cites·13 claims
- 0484US9966804B2Outer-rotor permanent magnet brushless motorIND TECH RES INST·Filed 2015·Granted May 8, 2018·4 cites·5 claims
- 0582US7611345B2Structure for preventing axial leakage in scroll compressorIND TECH RES INST·Filed 2007·Granted Nov 3, 2009·8 cites·13 claims
- 0682US6750580B2Permanent magnet rotor having magnet positioning and retaining meansIND TECH RES INST·Filed 2000·Granted Jun 15, 2004·33 cites·16 claims
- 0780US5474433AAxial sealing mechanism of volute compressorIND TECH RES INST·Filed 1994·Granted Dec 12, 1995·40 cites·11 claims
- 0876US7275918B2Scroll apparatus with an axial gap control functionIND TECH RES INST·Filed 2005·Granted Oct 2, 2007·5 cites·4 claims
- 0975US6987341B2Motor of rotor with built-in permanent magnetIND TECH RES INST·Filed 2004·Granted Jan 17, 2006·20 cites·13 claims
- 1071US8579604B2Floating apparatus for scroll compressorsLIANG KUN-YI·Filed 2011·Granted Nov 12, 2013·2 cites·15 claims
- 1171US7503755B2Baffle plate assembly for a compressorIND TECH RES INST·Filed 2004·Granted Mar 17, 2009·10 cites·15 claims
- 1267US10374536B2Ceiling fan, method for controlling ceiling fan motor and control device for ceiling fan motorIND TECH RES INST·Filed 2018·Granted Aug 6, 2019·2 cites·11 claims
- 1362US5527166AMechanism for locating a fixed volute of scroll compressorIND TECH RES INST·Filed 1995·Granted Jun 18, 1996·19 cites·9 claims
- 1460US6368088B1Scroll compressor with back pressure regulation mechanismIND TECH RES INST·Filed 2000·Granted Apr 9, 2002·8 cites·12 claims
- 1560US6048184ABack-pressure sealing system for revolving compressorIND TECH RES INST·Filed 1997·Granted Apr 11, 2000·16 cites·8 claims
- 1659US7736135B2Structure for controlling lubricant's flow rate in scroll compressorIND TECH RES INST·Filed 2008·Granted Jun 15, 2010·2 cites·15 claims
- 1756US10177617B2External rotor motorIND TECH RES INST·Filed 2017·Granted Jan 8, 2019·0 cites·9 claims
- 1852US6512317B2Motor using permanent magnet rotorIND TECH RES INST·Filed 2000·Granted Jan 28, 2003·6 cites·8 claims
- 1950US2010122544A1Micro-channel heat exchanger for carbon dioxide refrigerant, fluid distributer thereof and method of fabricating heat exchangerIND TECH RES INST·Filed 2009·Application pending·0 cites
- 2049US2023155438A1Stator, motor including the same and stator assembling methodIND TECH RES INST·Filed 2022·Application pending·0 cites
- 2145US2008159895A1Sealing structure and packing element thereofIND TECH RES INST·Filed 2007·Application pending·0 cites
- 2240US6142754AMounting mechanism for a scroll machineIND TECH RES INST·Filed 1998·Granted Nov 7, 2000·10 cites·21 claims
- 2339US2004126258A1Baffle plate assembly for a compressorIND TECH RES INST·Filed 2002·Application pending·0 cites
- 2437US2003052560A1Motor of rotor with built-in permanent magnetIND TECH RES INST·Filed 2002·Application pending·0 cites
- 2537US2018131245A1External rotor motorIND TECH RES INST·Filed 2016·Application pending·0 cites
- 2637US2011150690A1Oil supply structure for refrigerant compressorIND TECH RES INST·Filed 2010·Application pending·0 cites
- 2734US6179588B1Check valve device for a scroll machineIND TECH RES INST·Filed 1998·Granted Jan 30, 2001·5 cites·16 claims
- 2831US5921762AOldham ring system for rotary fluid apparatusIND TECH RES INST·Filed 1996·Granted Jul 13, 1999·3 cites·6 claims
- 2931US2015160671A1Power supply for variable speed blowing devices with electrical energy managementIND TECH RES INST·Filed 2014·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Yu-Choung Chang files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →