Inventor · disambiguated record
Virgil A. Marple
Also filed as: MARPEL VIRGIL A · MARPLE VIRGIL A · MARPLE VIRGIL ALAN
27 granted patents·4 pending applications·1,190 citations·filing 1973–2015
97Inventor score
Top patents by PatentIndex Score
31 records- 0196US4133202AMultiple nozzle single stage impactorUNIV MINNESOTA·Filed 1977·Granted Jan 9, 1979·87 cites·90 claims
- 0295US4972957AParticle concentrating samplerUNIV MINNESOTA·Filed 1988·Granted Nov 27, 1990·83 cites·6 claims
- 0395US4670135AHigh volume virtual impactorUNIV MINNESOTA·Filed 1986·Granted Jun 2, 1987·135 cites·12 claims
- 0495US3983743AApparatus and method for the analysis of a particle-laden gasSIERRA INSTR·Filed 1973·Granted Oct 5, 1976·71 cites·17 claims
- 0594US4321822AImpactor apparatusUNIV MINNESOTA·Filed 1980·Granted Mar 30, 1982·88 cites·38 claims
- 0693US6349668B1Method and apparatus for thin film deposition on large area substratesMSP CORP·Filed 1998·Granted Feb 26, 2002·118 cites·40 claims
- 0789US6723568B1Method 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
- 0888US5040424AHigh volume PM10 sampling inletUNIV MINNESOTA·Filed 1990·Granted Aug 20, 1991·79 cites·20 claims
- 0987US6453758B1Efficient high-productivity cascade impactorsMSP CORP·Filed 2000·Granted Sep 24, 2002·24 cites·25 claims
- 1087US6431014B1High accuracy aerosol impactor and monitorMSP CORP·Filed 1999·Granted Aug 13, 2002·81 cites·13 claims
- 1187US5395430AElectrostatic precipitator assemblyWET ELECTROSTATIC TECHNOLOGY I·Filed 1994·Granted Mar 7, 1995·97 cites·11 claims
- 1284US4827779ACartridge personal sampling impactorUNIV MINNESOTA·Filed 1988·Granted May 9, 1989·53 cites·8 claims
- 1384US4796475APersonal air sampling impactorUNIV MINNESOTA·Filed 1987·Granted Jan 10, 1989·51 cites·8 claims
- 1483US7651543B1Omni-directional inlet for particulate collectionUS NAVY·Filed 2006·Granted Jan 26, 2010·10 cites·19 claims
- 1581US5498271ADiesel particle virtual impactor samplerMSP CORP·Filed 1994·Granted Mar 12, 1996·57 cites·3 claims
- 1676US7082811B2Cascade impactor with individually driven impactor platesMSP CORP·Filed 2004·Granted Aug 1, 2006·12 cites·19 claims
- 1774US3954428APrecision aerosol dividerUS INTERIOR·Filed 1975·Granted May 4, 1976·29 cites·7 claims
- 1872US5006227AVolumetric flow controller for aerosol classifierMSP CORP·Filed 1989·Granted Apr 9, 1991·31 cites·12 claims
- 1969US11085861B1Apparatus for real-time size-distributed measurement of aerosol mass concentrationMSP CORP·Filed 2015·Granted Aug 10, 2021·1 cites·5 claims
- 2067US6595368B2Pre-separator for inlets of cascade impactorsMSP CORP·Filed 2000·Granted Jul 22, 2003·7 cites·10 claims
- 2161US6543301B2Impactor nozzle plateMSP CORP·Filed 2000·Granted Apr 8, 2003·3 cites·8 claims
- 2260US6561045B2Sampler for eliminating particle-related artifacts for flue gas measurementMSP CORP·Filed 2001·Granted May 13, 2003·3 cites·18 claims
- 2359US6647758B2Method and apparatus for verifying integrity of cascade impactorsMSP CORP·Filed 2000·Granted Nov 18, 2003·2 cites·6 claims
- 2457US5343767ALow particle loss cascade impactorMSP CORP·Filed 1992·Granted Sep 6, 1994·22 cites·14 claims
- 2553US2004250634A1Method and apparatus for cascade impactor testing of inhalable drug therapies recovery for chemical analysisMSP CORP·Filed 2004·Application pending·0 cites
- 2651US6520673B2Mixing devices for sample recovery from a USP induction port or a pre-separatorMSP CORP·Filed 2000·Granted Feb 18, 2003·5 cites·7 claims
- 2750US9541488B2Particle sampling and measurement in the ambient airMSP CORP·Filed 2013·Granted Jan 10, 2017·0 cites·14 claims
- 2845US3997433AMethod and apparatus for generating dry dust particlesLIU BENJAMIN Y H·Filed 1975·Granted Dec 14, 1976·12 cites·41 claims
- 2941US2002081748A1Method and apparatus for automated operation of impactorsFiled 2002·Application pending·0 cites
- 3040US2002070548A1Induction port assembly for impactors and method of assemblyFiled 2000·Application pending·0 cites
- 3134US2002069691A1Low volume vacuum source for leak test fixtureFiled 2000·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →