Patents by Inventor Jurgen Stohrer

Jurgen Stohrer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing organic hydroxylamines
    Patent number: 6211410
    Abstract: According to the inventive method for producing organic hydroxylamines, at least one organic nitro compound is partially hydrogenated in the presence of an organic base or ammonia, a trivalent phosphor compound and a hydrogenation catalyst. The invention is characterised in that quantities of the nitrogen base of more than 10 wt. % in relation to the organic nitro compound are used.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: April 3, 2001
    Assignee: Consortium für elektrochemische Industrie GmbH
    Inventors: Johannes Freudenreich, Jürgen Stohrer
  • Flame-retardant dispersion composition
    Patent number: 6111002
    Abstract: The preparation of an aqueous dispersion can be based on at least one water-insoluble organopolymer, on at least one water-dispersible silicon compound and on at least one water-soluble or dispersible phosphorus compound.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: August 29, 2000
    Assignee: Wacker-Chemie GmbH
    Inventors: Wolfgang Doring, Jurgen Stohrer, Richard Goetze
  • Pigments whose color depends on the viewing angle, their preparation and use
    Patent number: 5362315
    Abstract: The invention relates to pigments whose color depends on the viewing angle, their preparation and use.These pigments comprise oriented three-dimensionally crosslinked substances of liquid-crystalline structure having a chiral phase and, if desired, further dyes and pigments, the further dyes and pigments if present not serving as base for the oriented three-dimensionally crosslinked liquid-crystalline substances having a chiral phase.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: November 8, 1994
    Assignee: Consortium fur elektrochemische Industrie GmbH
    Inventors: Christoph Muller-Rees, Robert Maurer, Jurgen Stohrer, Franz-Heinrich Kreuzer, Silvia Jung, Franz Csellich