Inventor · disambiguated record
Ronald Chang
Also filed as: CHANG RONALD · CHANG RONALD G · CHENG RONALD
91 granted patents·15 pending applications·6,407 citations·filing 1989–2025
99Inventor score
Top patents by PatentIndex Score
106 records- 0199US7914994B2Method for separating an analyte from a sampleCEPHEID·Filed 2009·Granted Mar 29, 2011·89 cites·25 claims
- 0299US6893879B2Method for separating analyte from a sampleCEPHEID·Filed 2001·Granted May 17, 2005·402 cites·86 claims
- 0399US6664104B2Device incorporating a microfluidic chip for separating analyte from a sampleCEPHEID·Filed 2001·Granted Dec 16, 2003·472 cites·104 claims
- 0499US6440725B1Integrated fluid manipulation cartridgeCEPHEID·Filed 1998·Granted Aug 27, 2002·777 cites·73 claims
- 0599US6391541B1Apparatus for analyzing a fluid sampleFiled 2000·Granted May 21, 2002·380 cites·24 claims
- 0698US9669409B2Fluid processing and controlCEPHEID·Filed 2015·Granted Jun 6, 2017·19 cites·19 claims
- 0798US8592157B2Method for separating an analyte from a samplePETERSEN KURT E·Filed 2012·Granted Nov 26, 2013·69 cites·29 claims
- 0898US8247176B2Method for separating an analyte from a samplePETERSEN KURT E·Filed 2011·Granted Aug 21, 2012·75 cites·13 claims
- 0998US7569346B2Method for separating analyte from a sampleCEPHEID·Filed 2005·Granted Aug 4, 2009·90 cites·18 claims
- 1098US6940598B2Multi-channel optical detection systemCEPHEID·Filed 2002·Granted Sep 6, 2005·132 cites·35 claims
- 1198US6887693B2Device and method for lysing cells, spores, or microorganismsCEPHEID·Filed 2001·Granted May 3, 2005·232 cites·25 claims
- 1298US6881541B2Method for analyzing a fluid sampleCEPHEID·Filed 2001·Granted Apr 19, 2005·296 cites·16 claims
- 1398US6818185B1Cartridge for conducting a chemical reactionCEPHEID·Filed 2000·Granted Nov 16, 2004·290 cites·50 claims
- 1498US6369893B1Multi-channel optical detection systemCEPHEID·Filed 1999·Granted Apr 9, 2002·331 cites·54 claims
- 1597US9789481B2Device for extracting nucleic acid from a samplePETERSEN KURT E·Filed 2007·Granted Oct 17, 2017·75 cites·20 claims
- 1697US8431413B2Fluid processing and controlDORITY DOUGLAS B·Filed 2011·Granted Apr 30, 2013·65 cites·9 claims
- 1797US8048386B2Fluid processing and controlCEPHEID·Filed 2002·Granted Nov 1, 2011·145 cites·26 claims
- 1897US8029733B2Thermal cycler with optical detectorCEPHEID·Filed 2007·Granted Oct 4, 2011·35 cites·24 claims
- 1997US6565815B1Heat exchanging, optically interrogated chemical reaction assemblyCEPHEID·Filed 1998·Granted May 20, 2003·208 cites·60 claims
- 2097US6403037B1Reaction vessel and temperature control systemCEPHEID·Filed 2000·Granted Jun 11, 2002·218 cites·80 claims
- 2196USD978369SDiagnostic assay systemCEPHEID·Filed 2020·Granted Feb 14, 2023·26 cites·1 claims
- 2296US8673238B2Fluid processing and controlCEPHEID·Filed 2013·Granted Mar 18, 2014·22 cites·27 claims
- 2396US6783736B1Cartridge for analyzing a fluid sampleCEPHEID·Filed 2001·Granted Aug 31, 2004·146 cites·2 claims
- 2495USD907793SAssay processing systemCEPHEID·Filed 2018·Granted Jan 12, 2021·4 cites·1 claims
- 2594US8728765B2Closed-system multi-stage nucleic acid amplification reactionsCHING JESUS·Filed 2012·Granted May 20, 2014·41 cites·11 claims
- 2694US8580559B2Device for extracting nucleic acid from a samplePETERSEN KURT E·Filed 2007·Granted Nov 12, 2013·33 cites·16 claims
- 2794US8133703B2Closed-system multi-stage nucleic acid amplification reactionsCHING JESUS·Filed 2005·Granted Mar 13, 2012·86 cites·25 claims
- 2894US7575721B2Method and apparatus for storing and dispensing reagent beadsCEPHEID·Filed 2005·Granted Aug 18, 2009·15 cites·27 claims
- 2994US6878540B2Device for lysing cells, spores, or microorganismsCEPHEID·Filed 2001·Granted Apr 12, 2005·251 cites·4 claims
- 3093US11874182B1Alternating-bias signal resistance detection for resistive temperature detectors in disk drivesWESTERN DIGITAL TECH INC·Filed 2022·Granted Jan 16, 2024·1 cites·24 claims
- 3193US10525468B2Fluid processing and controlCEPHEID·Filed 2017·Granted Jan 7, 2020·4 cites·19 claims
- 3293US9322052B2Cartridge for conducting a chemical reactionCEPHEID·Filed 2014·Granted Apr 26, 2016·8 cites·21 claims
- 3393US9156032B2Apparatus and method for analyzing fluid samplePETERSON KURT E·Filed 2011·Granted Oct 13, 2015·29 cites·20 claims
- 3493US8900828B2Methods and apparatus for sequential amplification reactionsSMITH JOSEPH H·Filed 2007·Granted Dec 2, 2014·59 cites·15 claims
- 3593US8268603B2Apparatus and method for cell disruptionTAYLOR MICHAEL T·Filed 2005·Granted Sep 18, 2012·37 cites·6 claims
- 3693US7101509B2Reaction vessel and temperature control systemCEPHEID·Filed 2002·Granted Sep 5, 2006·48 cites·82 claims
- 3792US10907202B2Methods and apparatus for sequential amplification reactionsCEPHEID·Filed 2017·Granted Feb 2, 2021·5 cites·18 claims
- 3892USD889633SLoading trackCEPHEID·Filed 2018·Granted Jul 7, 2020·2 cites·1 claims
- 3992US7255833B2Apparatus and reaction vessel for controlling the temperature of a sampleCEPHEID·Filed 2003·Granted Aug 14, 2007·105 cites·74 claims
- 4092US6340944B1Programmable power consumption pipeline analog-to-digital converter with variable resolutionEXAR CORP·Filed 2000·Granted Jan 22, 2002·74 cites·11 claims
- 4191US8390262B2Methods and circuits for LED drivers and for PWM dimming controlsCHANG RONALD·Filed 2009·Granted Mar 5, 2013·39 cites·20 claims
- 4290US9943848B2Apparatus and method for cell disruptionCEPHEID·Filed 2015·Granted Apr 17, 2018·4 cites·10 claims
- 4390US7321268B2Ultra wideband and fast hopping frequency synthesizer for MB-OFDM wireless applicationVIA TECHNOLOGIES·Filed 2006·Granted Jan 22, 2008·22 cites·22 claims
- 4490US6987018B2Container for holding cells or viruses for disruptionCEPHEID·Filed 2002·Granted Jan 17, 2006·71 cites·11 claims
- 4589USD973655SCommand pod moduleCEPHEID·Filed 2020·Granted Dec 27, 2022·15 cites·1 claims
- 4689USD961111SAssay processing systemCEPHEID·Filed 2020·Granted Aug 16, 2022·1 cites·1 claims
- 4789US8168442B2Cartridge for conducting a chemical reactionPETERSEN KURT E·Filed 2004·Granted May 1, 2012·57 cites·6 claims
- 4889US6431476B1Apparatus and method for rapid ultrasonic disruption of cells or virusesCEPHEID·Filed 1999·Granted Aug 13, 2002·186 cites·67 claims
- 4988US8815521B2Apparatus and method for cell disruptionTAYLOR MICHAEL T·Filed 2005·Granted Aug 26, 2014·18 cites·10 claims
- 5088US5063376ANumeric mouse one hand controllable computer peripheral pointing deviceCHANG RONALD G·Filed 1989·Granted Nov 5, 1991·113 cites·27 claims
Showing the top 50 of 106 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →