Inventor · disambiguated record
Richard Rugin Chang
Also filed as: CHANG RICHARD · CHANG RICHARD R · CHANG RICHARD RUGIN
14 granted patents·3 pending applications·59 citations·filing 1987–2015
89Inventor score
Top patents by PatentIndex Score
17 records- 0174US8809874B2Light emitting diode and light emitting deviceCHANG RICHARD RUGIN·Filed 2010·Granted Aug 19, 2014·2 cites·8 claims
- 0268US8833431B2Aluminum alloy material and method of manufacturing aluminum alloy backboardXIAO DEYUAN·Filed 2010·Granted Sep 16, 2014·3 cites·4 claims
- 0364US6437332B2Infrared chopper using binary diffractive opticsRAYTHEON CO·Filed 2001·Granted Aug 20, 2002·9 cites·7 claims
- 0463US9306122B2Light emitting diode and a manufacturing method thereof, a light emitting deviceENRAYTEK OPTOELECTRONICS CO·Filed 2014·Granted Apr 5, 2016·0 cites·3 claims
- 0562US8945958B2Methods for manufacturing light emitting diode and light emitting deviceENRAYTEK OPTOELECTRONICS CO·Filed 2014·Granted Feb 3, 2015·0 cites·16 claims
- 0659US6232044B1Infrared chopper using binary diffractive opticsRAYTHEON CO·Filed 1993·Granted May 15, 2001·20 cites·20 claims
- 0752US8937322B2Light emitting diode and a manufacturing method thereof, a light emitting deviceCHANG RICHARD RUGIN·Filed 2010·Granted Jan 20, 2015·0 cites·9 claims
- 0851US9202985B2Light emitting diode and forming method thereofENRAYTEK OPTOELECTRONICS CO·Filed 2015·Granted Dec 1, 2015·0 cites·6 claims
- 0950US8969108B2Light emitting diode and forming method thereofXIAO DEYUAN·Filed 2011·Granted Mar 3, 2015·0 cites·13 claims
- 1049US5035898APotassium/magnesium supplementSCHERING CORP·Filed 1987·Granted Jul 30, 1991·14 cites·17 claims
- 1143US8580587B2Light emitting device and manufacturing method thereofCHANG RICHARD RUGIN·Filed 2010·Granted Nov 12, 2013·0 cites·13 claims
- 1241US4786509ADry sustained release theophylline oral formulationSCHERING CORP·Filed 1987·Granted Nov 22, 1988·11 cites·6 claims
- 1340US8704227B2Light emitting diode and fabrication method thereofXIAO DEYUAN·Filed 2010·Granted Apr 22, 2014·0 cites·20 claims
- 1440US2013214245A1Light emitting diode and fabrication method thereofCHANG RICHARD RUGIN·Filed 2010·Application pending·0 cites
- 1540US2012273751A1Light emitting device and a manufacturing method thereofCHANG RICHARD RUGIN·Filed 2010·Application pending·0 cites
- 1636US2012261691A1Light emitting device and manufacturing method thereofCHANG RICHARD RUGIN·Filed 2010·Application pending·0 cites
- 1735US9345086B2Lighting circuitCHANG RICHARD RUGIN·Filed 2011·Granted May 17, 2016·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →