Inventor · disambiguated record
David M. Heffelfinger
Also filed as: HEFFELFINGER DAVID M
18 granted patents·2 pending applications·897 citations·filing 1991–2007
96Inventor score
Files withBIO RAD LABORATORIES9ALPHA INNOTECH CORP2BECTON DICKINSON CO2BIOMETRIC IMAGING INC2BIO RAD LABRATORIES INC1
Top patents by PatentIndex Score
20 records- 0192US6130745AOptical autofocus for use with microtiter platesBIOMETRIC IMAGING INC·Filed 1999·Granted Oct 10, 2000·93 cites·19 claims
- 0288US6043506AMulti parameter scannerBIO RAD LABORATORIES·Filed 1997·Granted Mar 28, 2000·174 cites·45 claims
- 0388US5784152ATunable excitation and/or tunable detection microplate readerBIO RAD LABORATORIES·Filed 1996·Granted Jul 21, 1998·106 cites·61 claims
- 0488US5591981ATunable excitation and/or tunable emission fluorescence imagingBIO RAD LABORATORIES·Filed 1995·Granted Jan 7, 1997·98 cites·25 claims
- 0587US6750457B2System for high throughput analysisBECTON DICKINSON CO·Filed 2001·Granted Jun 15, 2004·42 cites·18 claims
- 0687US6441894B1Optical autofocus for use with microtiter platesBIOMETRIC IMAGING INC·Filed 1999·Granted Aug 27, 2002·64 cites·13 claims
- 0777US5863504AFluorescence imaging instrument utilizing fishBIO RAD LABORATORIES·Filed 1996·Granted Jan 26, 1999·44 cites·20 claims
- 0875US5885531AFluorescence imaging instrument utilizing fishBIO RAD LABORATORIES·Filed 1997·Granted Mar 23, 1999·38 cites·29 claims
- 0975US5792610AMethod for conducting multiparametric fluorescence in situ hybridizationBIORAD LAB INC·Filed 1996·Granted Aug 11, 1998·66 cites·9 claims
- 1075US5266803AFiber optic storage phosphor imaging plate scannerBIO RAD LABRATORIES INC·Filed 1991·Granted Nov 30, 1993·45 cites·34 claims
- 1171US7016087B2Photon efficient scannerBECTON DICKINSON CO·Filed 2001·Granted Mar 21, 2006·11 cites·27 claims
- 1271US6995901B2Optical analysis systemsALPHA INNOTECH CORP·Filed 2004·Granted Feb 7, 2006·13 cites·27 claims
- 1370US6853454B1Optical analysis systemsALPHA INNOTECH CORP·Filed 2004·Granted Feb 8, 2005·8 cites·11 claims
- 1464US5799773AMethod and apparatus for correcting lens and detector non-uniformitiesBIO RAD LABORATORIES·Filed 1997·Granted Sep 1, 1998·28 cites·15 claims
- 1561US5951838AMethod and apparatus for correcting illumination non-uniformitiesBIO RAD LABORATORIES·Filed 1997·Granted Sep 14, 1999·24 cites·13 claims
- 1661US5897760AMethod and apparatus for the removal of non-uniformities in an electrophoresis apparatusBIO RAD LABORATORIES·Filed 1997·Granted Apr 27, 1999·25 cites·22 claims
- 1754US5891314AMethod and apparatus for correcting lens non-uniformities in an electrophoresis apparatusBIO RAD LABORATORIES·Filed 1997·Granted Apr 6, 1999·18 cites·12 claims
- 1847US2004150217A1Identifying indicia and focusing targetFiled 2004·Application pending·0 cites
- 1946US2005157299A1Optical analysis systemsFiled 2004·Application pending·0 cites
- 2041US7948184B2Vehicle testing lamp apparatus, system, and methodLUMINYS SYSTEMS CORP·Filed 2007·Granted May 24, 2011·0 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →