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Heinz Eilingsfeld — 27 Patents

Basf Se: 27 patents #428 of 13,826Top 4%
Bischofswerda, DE: #22 of 447 inventorsTop 5%
Overall (All Time): #142,059 of 4,157,543Top 4%
27 Patents All Time
Heinz Eilingsfeld has been granted 27 US patents while listed as an inventor at Basf Se. The first was granted in 1980 and the most recent in April 1993. Heinz Eilingsfeld ranks #142,059 of 4,157,543 US inventors in our database (top 3.4%). Patent records list Heinz Eilingsfeld in Bischofswerda, DE.

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDate
5206375 Thiophene derivatives Ernst Schefczik, Karl-Heinz Etzbach 1993-04-27
5145952 Thiopheneazo dyes with a coupling component based on M-phenylenediamine Karl-Heinz Etzbach, Guenter Hansen, Helmut Reichelt, Ernst Schefczik 1992-09-08
5082973 Process for the preparation of bis(4-chlorophenyl) sulfone Michael Stumpp, Peter Neumann 1992-01-21
5072034 Preparation of 4-alkoxy-2-hydroxybenzophenone-5-sulfonic acids Peter Neumann, Alexander Aumueller 1991-12-10
5006659 Preparation of 7-chloroquinoline-8-carboxylic acids Helmut Hagen, Jacques Dupuis 1991-04-09
4983773 Preparation of bis-(4-chlorophenyl) sulfone Michael Stumpp, Peter Neumann 1991-01-08
4897469 Aniline series azo reactive dyes ortho- or para-substituted by vinyl sulfonyl reactive groups Ruediger Iden 1990-01-30
4873372 Isolation of 4,4'-dichlorodiphenyl sulfone Gerhard Schaefer, Peter Neumann, Michael Stumpp 1989-10-10
4843153 Azo dyes containing thienothiophene radicals as radicals of the diazo component Karl-Heinz Etzbach, Guenter Hansen, Helmut Reichelt 1989-06-27
4785116 Aminoisothiazole compounds Karl-Heinz Etzbach 1988-11-15
4677199 Reactive dyes containing substituted 4-fluoropyridaz-6-one radicals Dietmar Augart, Heinz-Wolfgang Krueger, Hartmut Lardon, Ortwin Schaffer, Guenther Seybold 1987-06-30
4533612 Electrophotographic recording materials containing special charge carrier-transporting compounds Karl-Heinz Etzbach, Gerhard Hoffmann, Peter Neumann 1985-08-06
4490541 5(3)-Aminopyrazolo-3,4(4,5)-dicarboximide azo dyestuff intermediates Karl-Heinz Etzbach 1984-12-25
4483795 Substituted phenyl disazo dyes containing a 2-amino-substituted thiazole radical Guenter Hansen, Guenther Seybold, Georg Zeidler 1984-11-20
4481272 Layered electrophotographic recording medium comprising heterocyclic nitrogen containing organic dye compounds Albrecht Eckell, Albert Elzer, Franz Feichtmayr, Gerhard Hoffmann, Reinhold J. Leyrer +1 more 1984-11-06
4466899 Dyes for use in liquid crystal mixtures Walter Ditter, Karl-Heinz Etzbach, Dieter Horn, Manfred Patsch 1984-08-21
4465857 Phenylhydrazones Peter Neumann, Karl-Heinz Etzbach, Gerhard Hoffmann 1984-08-14
4456672 Electrophotographic recording materials containing triazole charge carrier-transporting compounds Karl-Heinz Etzbach, Gerhard Hoffmann, Peter Neumann 1984-06-26
4407810 Thiazol-2-yl-oxamic acid derivatives, and therapeutic agents containing these compounds Peter Neumann, Guenther Seybold, Dieter Lenke, Ludwig Friedrich 1983-10-04
4372885 Bisazo dyes containing a 2-amino-substituted thiazole radical Guenter Hansen, Guenther Seybold, Georg Zeidler 1983-02-08
4340537 Monoazo dyes of the thiazole series having a heterocyclic substituent in the 4-position Guenter Hansen, Guenther Seybold 1982-07-20
4327019 Acid azo dyes from a 3-amino-benzisothiazole-[2,1]-5-sulfonic acid diazo component Guenter Hansen, Guenther Seybold, Georg Zeidler 1982-04-27
4278606 Preparation of 1-amino-2-phenoxy-4-hydroxyanthraquinone Heinrich Hiller, Helmut Reinicke, Fritz Traub 1981-07-14
4250090 2-Amino-5-arylazoarylazothiazole compounds Guenter Hansen, Guenther Seybold, Georg Zeidler 1981-02-10
4239894 Thiazole derivatives Guenther Seybold 1980-12-16

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