Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5530093 | Polycondensates containing phosphinic and phosphonic acid groups | Fritz Engelhardt, Karl-Heinz Keil, Ralf Zerrer | 1996-06-25 |
| 5492995 | Polycondensates containing phosphinic or phosphonic acid groups and siloxane groups | Fritz Engelhardt, Karl-Heinz Keil, Jurgen Kuhlwein, Wilfried Schuler, Ralf Zerrer +1 more | 1996-02-20 |
| 5414128 | Process for the preparation of N-substituted nitro-p-phenylenediamines | Rolf Muller, Peter Koch | 1995-05-09 |
| 5387716 | N4-substituted 1-alkoxy-2-acylamino-4-aminobenzenes, process for their preparation and their use | Peter Koch | 1995-02-07 |
| 5383961 | Water-soluble sulphur dyes, their preparation and use | Wolfgang Bauer, Gert Nagl, Josef Ritter, Wilhelm Mauelshagen | 1995-01-24 |
| 5374302 | Water-insoluble sulphur dyes, their preparation and use | Wolfgang Bauer, Josef Ritter, Wilhelm Mauelshagen | 1994-12-20 |
| 5368637 | Water-insoluble sulphur dyes, their preparation and use | Wolfgang Bauer, Josef Ritter, Wilhelm Mauelshagen | 1994-11-29 |
| 5174791 | Process for dyeing and printing blend fabrics of polyester and natural fibre materials with disperse dye and polyether-polyester to inhibit soilins with disperse dye | Ulrich Buhler, Klaus Hofmann, Hubert Kruse, Jurgen Kuhlwein | 1992-12-29 |
| 5110917 | Water-soluble trisazo dyes | Wolfgang Bauer, Josef Ritter | 1992-05-05 |
| 5037962 | .beta.-modification of 1-(2,4-dinitro-6-chloro-phenylazo)-2-propionylamino-4-N-ethylamino-5-(2- methoxy-ethoxy)benzene, its preparation and its use | Hubert Kruse, Ulrich Buhler, Konrad Opitz | 1991-08-06 |
| 4918221 | Process for preparing 2,5-dichlorophenylthioglycollic acid | Wolfgang Bauer | 1990-04-17 |
| 4881977 | Water-soluble yellow monoazo dyestuffs | Wolfgang Bauer, Josef Ritter | 1989-11-21 |
| 4871754 | Aqueous formulation of 1,2-benzisothiazolin-3-one | Wolfgang Bauer | 1989-10-03 |
| 4595628 | Soil repellent fluorinated esters of multi-ring anhydride systems | Michael G. Kelly | 1986-06-17 |
| 4472466 | Soil repellent fluorinated esters of multi-ring anhydride systems | Michael G. Kelly | 1984-09-18 |
| 4293306 | Process for the dyeing and printing of hydrophobic synthetic organic fiber materials with water-insoluble azo dyestuffs | Ernst Hoyer, Walter Deucker, Rudolf Schickfluss | 1981-10-06 |