Helmut Degen — 17 Patents at Basf Se

Helmut Degen has been granted 17 US patents while listed as an inventor at Basf Se. The first was granted in 1983 and the most recent in August 1996. Helmut Degen ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Helmut Degen in Bischofswerda, DE.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date
5547477	Dye mixtures with pyridoneazo dyes	Arno Lange, Gunther Lamm, Helmut Reichelt, Dieter Wegerle	1996-08-20
5502170	Azo dyes with an acetalized diazo component of the thiophene or thiazole series	Sabine Gruettner-Merten, Helmut Reichelt, Arno Lange	1996-03-26
5466790	Azo dyes with an acetalized diazo component of the thiophene or thiazole series	Sabine Gruettner-Merten, Helmut Reichelt, Arno Lange	1995-11-14
5382263	Blue dye mixtures of high brilliance	Arno Lange, Sabine Gruettner-Merten, Helmut Reichelt	1995-01-17
5364972	Preparation of nitrobenzophenones, and a color-stable modification of a benzophenone-azopyridone dye	Norbert Zimmerman, Ralf Brueckmann, Gunther Lamm, Arno Lange, Helmut Reichelt	1994-11-15
5330543	Thiopheneazo dyes with a coupling component of the diaminopyridine series	Guenter Hansen, Gunther Lamm, Hermann Loeffler, Helmut Reichelt, Arno Lange +1 more	1994-07-19
5318601	Dye mixtures containing azo and quinophthalone dyes	Arno Lange, Gert Motzkus, Volker Walther	1994-06-07
5270456	Azo dyes with A2-aminothiophene dye azo component and a coupling component and coupling component of the diphenylamine series	Erwin Hahn, Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Ernst Schefczik +1 more	1993-12-14
5062861	Novel navy and black disperse dye mixtures including amino-phenyl thiophene azo disperse dye and red, yellow or orange disperse dyes	Erwin Hahn, Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Ernst Schefczik +2 more	1991-11-05
4925954	Vat dye based on flouranthene	Manfred Patsch, Gerhard Epple, Helmut Flohr, Uwe Nahr	1990-05-15
4908041	Navy and black dye mixtures: thiophene azo disperse dye and red, yellow or orange disperse dye	Erwin Hahn, Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Ernst Schefczik +2 more	1990-03-13
4537597	Navy blue mixtures of disperse mono-azo dyes for cellulose acetate	Udo Bergmann, Guenter Hansen, Reinhold Krallmann, Hans Weber	1985-08-27
4486198	Navy dye mixtures	Ernst Becker, Udo Bergmann, Guenter Hansen, Reinhold Krallmann	1984-12-04
4464181	Mixtures of benzisothiazole mono-azo dyes for cellulose acetate	Johannes P. Dix, Norbert Grund, Guenter Hansen, Reinhold Krallmann	1984-08-07
4405330	Navy disperse dye mixtures	Udo Bergmann, Guenter Hansen, Reinhold Krallmann, Wolf-Dieter Kermer	1983-09-20
4389216	Navy dye mixtures	Udo Bergmann, Guenter Hansen, Reinhold Krallmann, Wolf-Dieter Kermer	1983-06-21
4386934	Navy dye mixtures	Udo Bergmann, Guenter Hansen, Reinhold Krallmann, Wolf-Dieter Kermer	1983-06-07

Helmut Degen — 17 Patents

Issued Patents All Time

Patent Widget