Resources Contact Us Home
Westphal; Jochen
Dusseldorf, DE
No. of 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
Variety corn line NPAA2675
Micro vein enhancer
Method and system to generate finite state grammars using sample phrases
Semiconductor device
Selection of system parameters based on non-acoustic sensor information
Microwavable bag
System for targeted delivery of therapeutic agents
  Randomly Featured Patents
Front entry electric meter lock
Transcranial doppler apparatus
Method and apparatus for generating parity-check bits from a symbol set
On chip heater element and temperature sensor
Apparatus for the transfer and in-situ reactions under a controlled atmosphere, of specimens for transmissive electron microscopy
Process for the production of acetylene and synthesis gas
Nail form
Catalytic coal hydroliquefaction process
Solar cell panel and solar energy collecting device
Recording medium loading device