Inventor · disambiguated record
Benjamin Y. H. Liu
Also filed as: LIU BENJAMIN · LIU BENJAMIN Y · LIU BENJAMIN Y H
69 granted patents·14 pending applications·2,908 citations·filing 1974–2017
99Inventor score
Top patents by PatentIndex Score
83 records- 0197US8711338B2Apparatus for counting particles in a gasLIU BENJAMIN Y H·Filed 2012·Granted Apr 29, 2014·550 cites·10 claims
- 0296US6221136B1Compact electrostatic precipitator for droplet aerosol collectionMSP CORP·Filed 1998·Granted Apr 24, 2001·100 cites·22 claims
- 0395US8465791B2Method for counting particles in a gasLIU BENJAMIN Y H·Filed 2010·Granted Jun 18, 2013·21 cites·10 claims
- 0495US4972957AParticle concentrating samplerUNIV MINNESOTA·Filed 1988·Granted Nov 27, 1990·83 cites·6 claims
- 0595US4670135AHigh volume virtual impactorUNIV MINNESOTA·Filed 1986·Granted Jun 2, 1987·135 cites·12 claims
- 0694US6639671B1Wide-range particle counterMSP CORP·Filed 2002·Granted Oct 28, 2003·64 cites·37 claims
- 0794US6527821B2Automatic condensed oil removerMSP CORP·Filed 2002·Granted Mar 4, 2003·49 cites·3 claims
- 0894US4817652ASystem for surface and fluid cleaningUNIV MINNESOTA·Filed 1987·Granted Apr 4, 1989·151 cites·7 claims
- 0994US4321822AImpactor apparatusUNIV MINNESOTA·Filed 1980·Granted Mar 30, 1982·88 cites·38 claims
- 1093US6349668B1Method and apparatus for thin film deposition on large area substratesMSP CORP·Filed 1998·Granted Feb 26, 2002·118 cites·40 claims
- 1192US6607597B2Method and apparatus for deposition of particles on surfacesMSP CORP·Filed 2001·Granted Aug 19, 2003·54 cites·21 claims
- 1292US6409839B1Method and apparatus for vapor generation and film depositionMSP CORP·Filed 1999·Granted Jun 25, 2002·91 cites·10 claims
- 1392US5609798AHigh output PSL aerosol generatorMSP CORP·Filed 1995·Granted Mar 11, 1997·130 cites·12 claims
- 1491US8603247B2Apparatus for counting particles in a gasMSP CORP·Filed 2013·Granted Dec 10, 2013·8 cites·6 claims
- 1591US8511583B2Fine droplet atomizer for liquid precursor vaporizationLIU BENJAMIN Y H·Filed 2011·Granted Aug 20, 2013·5 cites·4 claims
- 1691US7363828B2Aerosol measurement by dilution and particle countingMSP CORP·Filed 2005·Granted Apr 29, 2008·17 cites·19 claims
- 1790US6902604B2Electrostatic precipitator with internal power supplyMSP CORP·Filed 2003·Granted Jun 7, 2005·32 cites·11 claims
- 1890US6829044B2Compact, high-efficiency condensation nucleus counterMSP CORP·Filed 2002·Granted Dec 7, 2004·38 cites·22 claims
- 1990US4962776AProcess for surface and fluid cleaningUNIV MINNESOTA·Filed 1988·Granted Oct 16, 1990·98 cites·32 claims
- 2089US8297223B2Method and apparatus for particle filtration and enhancing tool performance in film depositionLIU BENJAMIN·Filed 2008·Granted Oct 30, 2012·15 cites·4 claims
- 2189US6723568B1Method and apparatus for cascade impactor testing of inhalable drug therapies recovery for chemical analysisMSP CORP·Filed 2000·Granted Apr 20, 2004·29 cites·15 claims
- 2289US4941899ACyclone personal sampler for aerosolsUNIV MINNESOTA·Filed 1989·Granted Jul 17, 1990·67 cites·10 claims
- 2388US5040424AHigh volume PM10 sampling inletUNIV MINNESOTA·Filed 1990·Granted Aug 20, 1991·79 cites·20 claims
- 2487US6453758B1Efficient high-productivity cascade impactorsMSP CORP·Filed 2000·Granted Sep 24, 2002·24 cites·25 claims
- 2587US6431014B1High accuracy aerosol impactor and monitorMSP CORP·Filed 1999·Granted Aug 13, 2002·81 cites·13 claims
- 2686US4304096AMethod for reducing particulates discharged by combustion meansUNIV MINNESOTA·Filed 1979·Granted Dec 8, 1981·41 cites·24 claims
- 2785US4015582ASolar heat collectorUNIV MINNESOTA·Filed 1974·Granted Apr 5, 1977·36 cites·14 claims
- 2884US8783652B2Liquid flow control for film depositionDINH THUC M·Filed 2013·Granted Jul 22, 2014·9 cites·13 claims
- 2984US5160664AHigh output monodisperse aerosol generatorMSP CORP·Filed 1991·Granted Nov 3, 1992·60 cites·14 claims
- 3084US4827779ACartridge personal sampling impactorUNIV MINNESOTA·Filed 1988·Granted May 9, 1989·53 cites·8 claims
- 3183US7882799B2Method and apparatus for generating charged particles for deposition on a surfaceMSP CORP·Filed 2005·Granted Feb 8, 2011·6 cites·9 claims
- 3283US5916640AMethod and apparatus for controlled particle deposition on surfacesMSP CORP·Filed 1996·Granted Jun 29, 1999·58 cites·17 claims
- 3382US9768005B1Electrospray ionizer for mass spectrometry of aerosol particlesMSP CORP·Filed 2016·Granted Sep 19, 2017·4 cites·17 claims
- 3482US8603580B2High stability and high capacity precursor vapor generation for thin film depositionLIU BENJAMIN Y H·Filed 2006·Granted Dec 10, 2013·4 cites·14 claims
- 3580US8554064B1Method and apparatus for generating vapor at high ratesDINH THUC·Filed 2011·Granted Oct 8, 2013·17 cites·12 claims
- 3680US6364941B2Compact high efficiency electrostatic precipitator for droplet aerosol collectionMSP CORP·Filed 2001·Granted Apr 2, 2002·33 cites·8 claims
- 3780US5453107AAir and gas cooling and filtration apparatusMSP CORP·Filed 1994·Granted Sep 26, 1995·49 cites·12 claims
- 3880US4718975AParticle shieldTEXAS INSTRUMENTS INC·Filed 1986·Granted Jan 12, 1988·60 cites·19 claims
- 3979US7325441B2Personal mask test systemMSP CORP·Filed 2005·Granted Feb 5, 2008·9 cites·20 claims
- 4079US7276224B2Synthesis of nanoporous particlesUNIV MINNESOTA·Filed 2002·Granted Oct 2, 2007·16 cites·25 claims
- 4177US5534309AMethod and apparatus for depositing particles on surfacesMSP CORP·Filed 1994·Granted Jul 9, 1996·59 cites·10 claims
- 4276US9895707B2Method and apparatus for generating monodisperse aerosolsMSP CORP·Filed 2015·Granted Feb 20, 2018·3 cites·15 claims
- 4376US7830510B2Apparatus for high-accuracy fiber counting in airMSP CORP·Filed 2009·Granted Nov 9, 2010·6 cites·13 claims
- 4476US7082811B2Cascade impactor with individually driven impactor platesMSP CORP·Filed 2004·Granted Aug 1, 2006·12 cites·19 claims
- 4576US5176723ACondensation-growth particle scrubberUNIV MINNESOTA·Filed 1991·Granted Jan 5, 1993·47 cites·15 claims
- 4674US6746539B2Scanning deposition head for depositing particles on a waferMSP CORP·Filed 2001·Granted Jun 8, 2004·17 cites·11 claims
- 4769US11085861B1Apparatus for real-time size-distributed measurement of aerosol mass concentrationMSP CORP·Filed 2015·Granted Aug 10, 2021·1 cites·5 claims
- 4868US6601777B2Suspended particle container for an atomizerMSP CORP·Filed 2001·Granted Aug 5, 2003·12 cites·9 claims
- 4967US7267711B2Electrostatic precipitator for diesel blow-byMSP CORP·Filed 2004·Granted Sep 11, 2007·12 cites·15 claims
- 5067US6805907B2Method and apparatus for vapor generation and film depositionMSP CORP·Filed 2002·Granted Oct 19, 2004·6 cites·9 claims
Showing the top 50 of 83 patent records by PatentIndex Score.
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