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Norbert Greif — 20 Patents

Basf Se: 20 patents #668 of 13,826Top 5%
Worms, DE: #12 of 331 inventorsTop 4%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Norbert Greif has been granted 20 US patents while listed as an inventor at Basf Se. The first was granted in 1980 and the most recent in March 2000. Norbert Greif ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Norbert Greif in Worms, DE.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
6033442 Use of aqueous solutions or dispersions of copolymers of carboxyl-group-containing monomers, ethylenically unsaturated acetals, ketals or orthocarboxylic acid esters and optionally other copolymerizable monomers as leather tanning agents Walter Denzinger, Axel Kistenmacher, Gerhard Wolf, Michael Kneip, Knut Oppenlander 2000-03-07
6007801 Use of carboxyl-containing polysiloxanes in cosmetic formulations Peter Hossel, Michael Kneip 1999-12-28
5798147 Process for coating and printing substrates Erich Beck, Frank Meyer, Ulrich Poth, Karl Siemensmeyer, Claudia Sierakowski +6 more 1998-08-25
5527360 Fatliquoring, filling and hydrophobicizing leathers and furs Hermann Birkhofer, Peter Danisch, Knut Oppenlaender 1996-06-18
5433752 Use of rection products of Homo- or copolymers based on monoethylenically unsaturated dicarboxylic anhydrides with amines or alcohols for fatliquoring and filling leather and fur skins Hermann Birkhofer, Peter Danisch, Walter Denzinger, Heinrich Hartmann, Knut Oppenlaender 1995-07-18
5420207 Preparation of polyisobutylsuccinic anhydrides Knut Oppenlaender 1995-05-30
5286263 Use of copolymers based on long-chain alkyl vinyl ethers and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent Ortwin Schaffer, Herbert Bay, Karl Stork, Knut Oppenlaender, Walter Denzinger +1 more 1994-02-15
5279613 Copolymers based on long-chain olefins and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent Ortwin Schaffer, Herbert Bay, Karl Stork, Knut Oppenlaender, Walter Denzinger +1 more 1994-01-18
5266165 Paper sizing using copolymers of long-chain olefins and maleic anhydride in the form of the semiamides with morpholine Arnold DeClercq, Walter Denzinger, Heinrich Hartmann, Knut Oppenlaender, Ulrich Riebeling 1993-11-30
5124181 Copolymers based on long-chain unsaturated esters and ethylenically unsaturated carboxylic acids for making leather and furs water repellent Ortwin Schaffer, Herbert Bay, Karl Stork, Knut Oppenlaender, Walter Denzinger +1 more 1992-06-23
5009670 Fuels for gasoline engines Franz-Dieter Martischius, Hans-Henning Vogel, Knut Oppenlaender, Walter Denzinger, Heinrich Hartmann 1991-04-23
4978780 Preparation of ether sulfonates and polyglycol ether sulfonates, and products prepared by this method Rolf Fikentscher, Knut Oppenlaender, Karl Stork 1990-12-18
4959077 Fuels for gasoline engines Franz-Dieter Martischius, Hans Peter Rath, Hans-Henning Vogel, Knut Oppenlaender, Walter Denzinger +1 more 1990-09-25
4767707 Immobilization of enzymes with a water-soluble glycidyl ether Stefan Marcinowski, Axel Sanner, Chung-Ji Tschang, Wolfgang Ladner 1988-08-30
4734535 Preparation of aliphatic chlorine compounds Knut Oppenlaender 1988-03-29
4496439 Acidic zinc-plating bath Knut Oppenlaender, Albert Hettche, Christos Vamvakaris 1985-01-29
4375565 Low-foaming, biodegradable alkoxylation products terminated with glycerine ether radicals, and a process for their preparation Erhard Klahr, Wolfgang Trieselt 1983-03-01
4239491 Dyeing and printing of textiles with disperse dyes Ulrich Baumgarte, Knut Oppenlaender, Harald Schlueter, Harro Petersen, Rainer Strickler 1980-12-16
4229174 Dispersant for textile dyeing and optical brightening Paul Boerzel, Peter Freyberg, Rudi Widder 1980-10-21
4200733 Iodine-containing block copolymers of 1,4-butylene oxide and ethylene oxide Johannes Perner, Rolf Fikentscher, Paul Diessel 1980-04-29