Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Westphal; Jochen
Address:
Dusseldorf, DE
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
4978747 Colorants obtained by reacting a NH.sub.2 -containing dyestuff with a diisocyanate followed by r December 18, 1990
Colorants are obtained by reacting a dyestuff which is free from ionic groups and has.gtoreq.2 NH.sub.2 groups which are preferably arranged in such a manner that they do not participate in the resonance of the chromophore with such an amount of a (cyclo)aliphatic diisocyante so as to
4670548 Sulfo-group-containing trisazo dyestuffs June 2, 1987
Water-soluble dyestuffs of the formulawhereinA denotes sulphophenyl or sulphonaphthyl, which are optionally further substituted,B denotes sulpho-1,4-naphthylene, which is optionally further substituted,C denotes 1,4-phenylene or 1,4-naphthylene, which are optionally further substituted, andK










 
 
  Recently Added Patents
Position detection device, pointing device and input device
Systems and methods to provide communication history for communication devices
Method and apparatus for transmitting and receiving extension information of component carrier in wireless communication system
Supply voltage generating circuit and semiconductor device having the same
Automatic engine oil life determination with a factor for oil quality
Adhesive structure of optical device, adhesion method, and optical pickup device
Fuel cell support structure
  Randomly Featured Patents
Apparatus and method for verifying keystrokes within a computing system
Dock leveler hold-down system
Multi-functional sensor system for molten salt technologies
Foreground window determination through process and thread initialization
Apparatus and method for measuring and displaying the pulse width of a video signal
Luminescent materials prepared by coating luminescent compositions onto substrate particles
Solder pad for printed circuit boards
Bicycle crank fixing structure
System for output power control on electric heater drive
Photostimulator