Helmut Freitag — 19 Patents at BOE

Helmut Freitag has been granted 19 US patents while listed as an inventor at BOE. The first was granted in 1988 and the most recent in July 2007. Helmut Freitag ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Helmut Freitag in Weinheim, IN, DE.

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #	Title	Co-Inventors	Date
7238538	Chromatographic assay device and methods	Qinwei Shi	2007-07-03
6673628	Analytical test device and method	Qinwei Shi, Charles A. Harrington	2004-01-06
6410341	Analytical test device and method for use in medical diagnoses	Qinwei Shi, Charles A. Harrington	2002-06-25
6214629	Analytical test device and method for use in medical diagnoses	Oinwei Shi, Charles A. Harrington	2001-04-10
6171870	Analytical test device and method for use in medical diagnoses	—	2001-01-09
5707820	Reagent and assay methods including a phenazine-containing indicator	Christopher D. Wilsey	1998-01-13
5460975	Diphenylmethane derivatives, process for their production and their use for the displacement of iodothyronines from proteins which bind them	Wolfgang-Reinhold Knappe, Heino Eikmeier, Wolfgang Weckerle	1995-10-24
5434054	Devices for determining hydrolase activity through its hydrolytic release of an immobilized indicator enzyme	Klaus Pollmann, Anselm Rothe	1995-07-18
5403100	Ball race slew bearing	Bernd Meyenburg	1995-04-04
5271895	Test strip	Ralph P. McCroskey, Mary C. Smith, Kenneth J. Dean, Stephanie Secrest, Lee Bouse	1993-12-21
5223436	Test carrier for the analytical determination of a component of a liquid sample	Anselm Rothe, Klaus Pollmann	1993-06-29
5162238	Test carrier for analysis of a liquid sample	Henio Eikmeier, Karin Munter, Klaus Pollmann, Hans-Erich Wilk, Johannes Winkle	1992-11-10
5132208	Test carrier for the analysis of a sample liquid	Hans-Erich Wilk, Anselm Rothe, Heino Eikmeier	1992-07-21
5037736	Process and test carrier for the determination of an analyte	Hans-Erich Wilk, Anselm Rothe	1991-08-06
5037764	Process for determination of an analyte and reagent therefor	Hans-Erich Wilk, Josef Burg, Johann Berger	1991-08-06
4929545	Method and reagent for determination of an analyte via enzymatic means using a ferricyanide/ferric compound system	—	1990-05-29
4876067	Multilayer test strip device with a dissolvable reagent layer	Ulfert Deneke, Rolf Nagel, Anselm Rothe	1989-10-24
4839297	Test carrier and method for the analytical determination of a component of a body fluid	Joachim Steinbiss, Anselm Rothe	1989-06-13
4786603	Method for separating plasma from blood and silanized glass fibres therefor	Hans Wielinger	1988-11-22

Helmut Freitag — 19 Patents

Issued Patents All Time

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