HL

Hermann Loeffler

Basf Se: 23 patents #549 of 13,826Top 4%
SA Sandoz Ag: 2 patents #275 of 1,103Top 25%
Overall (All Time): #165,988 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5623060 Dye mixture containing at least four diazo dyes having the same color with a diaminopyridine coupling component Gunther Lamm, Helmut Reichelt 1997-04-22
5536840 Process of preparing diaminopyridine compounds Gunther Lamm, Helmut Reichelt 1996-07-16
5484460 Dye mixtures containing azo dyes having a coupling component from the diaminopyridine series Gunther Lamm, Volker Bach, Arno Lange, Helmut Reichelt, Herbert Rothmaier 1996-01-16
5403363 Dye mixtures containing azo dyes having a coupling component from the diaminopyridine series Gunther Lamm, Volker Bach, Arno Lange, Helmut Reichelt, Herbert Rothmaier 1995-04-04
5352774 Dyes containing thiophene radicals Guenter Hansen, Ernst Schefczik, Karl-Heinz Etzbach, Helmut Reichelt 1994-10-04
5330543 Thiopheneazo dyes with a coupling component of the diaminopyridine series Guenter Hansen, Gunther Lamm, Helmut Reichelt, Helmut Degen, Arno Lange +1 more 1994-07-19
5283326 Dyes containing thiophene radicals Guenter Hansen, Ernst Schefczik, Karl-Heinz Etzbach, Helmut Reichelt 1994-02-01
5245020 Reactive dyes with two or three nitrogen-containing haloheterocycles as reactive system Joerg L. Jessen, Klaus Pandl, Bernd Siegel, Manfred Patsch 1993-09-14
5223607 Reactive azo dyes with at lest two reactive halotriazine groups Manfred Patsch, Reinhold Krallmann 1993-06-29
5216137 Doubled phenyl azo naphthalene reactive dyes having four halotriazine reactive groups and a phenylene diamine series bridge member Manfred Patsch, Reinhold Krallmann 1993-06-01
5200511 Cholorotriazine dyes with two azo chromophores exhibiting further reactive groups Manfred Patsch 1993-04-06
5175262 Doubled reactive dyes Klaus Pandl, Manfred Patsch 1992-12-29
5149789 Reactive dyes with two or three nitrogen-containing haloheterocycles as reactive system Joerg L. Jessen, Klaus Pandl, Bernd Siegel, Manfred Patsch 1992-09-22
5066791 Pyridoneazo dyes with an M-aminobenzoic ester as the diazo component Guenter Hansen, Gunther Lamm 1991-11-19
4988802 Reactive dyes with three reactive groups Manfred Patsch 1991-01-29
4965345 Solvent azo dyes having carboxylic acid functions — 1990-10-23
4965346 Heterocyclic azo dyes containing cyanothiophene derivatives as diazo components and diaminopyridines as coupling components Johannes Dehnert, Gunther Lamm 1990-10-23
4939118 Transfer of azo dyes having a pyridine coupling component Karl-Heinz Etzbach, Gunther Lamm, Helmut Reichelt, Ruediger Sens 1990-07-03
4855412 Diaminopyridine azo dyes having acyloxy radicals substituted on the diaminopyridine Johannes Dehnert, Gunther Lamm 1989-08-08
4855413 Heterocyclic azo dyes containing cyanothiophene derivatives as diazo components and diaminopyridines as coupling components Johannes Dehnert, Gunther Lamm 1989-08-08
4774324 Isothiazolylazo dyes Ernst Schefczik 1988-09-27
4668774 2-ethylhexylamine salts of anionic monoazo dyes Rainer Dyllick-Brenzinger 1987-05-26
4419290 Diazo dyes having a coupler component attached to a sulfaphenyl-azo-phenyl-azo-radical Johannes Dehnert 1983-12-06
4380452 Dyeing and printing of cellulose-containing textile material Werner Juenemann, Gunther Lamm 1983-04-19
4276045 Dyeing and printing of cellulosic textile material Werner Juenemann, Gunther Lamm 1981-06-30