Inventor · disambiguated record
Helmut Freitag
Also filed as: FREITAG HELMUT · FREITAG HELMUT E · FREITAG HELMUT E C
19 granted patents·849 citations·filing 1987–2004
96Inventor score
Files withBOEHRINGER MANNHEIM GMBH10SPECTRAL DIAGNOSTICS INC4BOEHRINGER MANNHEIM CORP3FREITAG HELMUT E1KRUPP FOERDERTECHNIK GMBH1
Top patents by PatentIndex Score
19 records- 0191US6214629B1Analytical test device and method for use in medical diagnosesSPECTRAL DIAGNOSTICS INC·Filed 1999·Granted Apr 10, 2001·166 cites·62 claims
- 0291US6171870B1Analytical test device and method for use in medical diagnosesSPECTRAL DIAGNOSTICS INC·Filed 1998·Granted Jan 9, 2001·106 cites·70 claims
- 0390US6673628B2Analytical test device and methodSPECTRAL DIAGNOSTICS INC·Filed 2001·Granted Jan 6, 2004·47 cites·1 claims
- 0488US4839297ATest carrier and method for the analytical determination of a component of a body fluidBOEHRINGER MANNHEIM GMBH·Filed 1987·Granted Jun 13, 1989·72 cites·21 claims
- 0586US7238538B2Chromatographic assay device and methodsFREITAG HELMUT E·Filed 2004·Granted Jul 3, 2007·37 cites·27 claims
- 0685US6410341B1Analytical test device and method for use in medical diagnosesSPECTRAL DIAGNOSTICS INC·Filed 1999·Granted Jun 25, 2002·75 cites·64 claims
- 0785US4876067AMultilayer test strip device with a dissolvable reagent layerBOEHRINGER MANNHEIM GMBH·Filed 1987·Granted Oct 24, 1989·56 cites·19 claims
- 0879US4929545AMethod and reagent for determination of an analyte via enzymatic means using a ferricyanide/ferric compound systemBOEHRINGER MANNHEIM CORP·Filed 1989·Granted May 29, 1990·58 cites·23 claims
- 0978US5132208ATest carrier for the analysis of a sample liquidBOEHRINGER MANNHEIM GMBH·Filed 1988·Granted Jul 21, 1992·40 cites·19 claims
- 1071US5223436ATest carrier for the analytical determination of a component of a liquid sampleBOEHRINGER MANNHEIM GMBH·Filed 1988·Granted Jun 29, 1993·30 cites·10 claims
- 1171US4786603AMethod for separating plasma from blood and silanized glass fibres thereforBOEHRINGER MANNHEIM GMBH·Filed 1987·Granted Nov 22, 1988·25 cites·14 claims
- 1262US5162238ATest carrier for analysis of a liquid sampleBOEHRINGER MANNHEIM GMBH·Filed 1988·Granted Nov 10, 1992·26 cites·14 claims
- 1357US5037736AProcess and test carrier for the determination of an analyteBOEHRINGER MANNHEIM GMBH·Filed 1987·Granted Aug 6, 1991·18 cites·19 claims
- 1454US5271895ATest stripBOEHRINGER MANNHEIM CORP·Filed 1993·Granted Dec 21, 1993·46 cites·14 claims
- 1553US5037764AProcess for determination of an analyte and reagent thereforBOEHRINGER MANNHEIM GMBH·Filed 1987·Granted Aug 6, 1991·15 cites·22 claims
- 1649US5707820AReagent and assay methods including a phenazine-containing indicatorBOEHRINGER MANNHEIM CORP·Filed 1996·Granted Jan 13, 1998·10 cites·32 claims
- 1745US5460975ADiphenylmethane derivatives, process for their production and their use for the displacement of iodothyronines from proteins which bind themBOEHRINGER MANNHEIM GMBH·Filed 1993·Granted Oct 24, 1995·11 cites·20 claims
- 1842US5434054ADevices for determining hydrolase activity through its hydrolytic release of an immobilized indicator enzymeBOEHRINGER MANNHEIM GMBH·Filed 1993·Granted Jul 18, 1995·8 cites·3 claims
- 1923US5403100ABall race slew bearingKRUPP FOERDERTECHNIK GMBH·Filed 1992·Granted Apr 4, 1995·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →