Patents by Inventor Gerhard Greber

Gerhard Greber 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).

  • Coreactive photoinitiators
    Patent number: 5837746
    Abstract: Compounds of the formulaRG--A--INwherein IN is a photoinitiator basic structure A is a spacer group and RG is a functional reactive group can be employed as coreactive photoinitiators for photo-polymerization of systems containing ethylenically unsaturated compounds.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: November 17, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Manfred Kohler, Jorg Ohngemach, Eike Poetsch, Rudolf Eidenschink, Gerhard Greber, Dieter Dorsch, Jurgen Gehlhaus, Konrad Dorfner, Hans Ludwig Hirsch
  • Coreactive photoinitiators
    Patent number: 5744512
    Abstract: Compounds of the formulaRG--A--INwhereinIN is a photoinitiator basic structureA is a spacer group andRG is a functional reactive group can be employed as coreactive photoinitiators for photopolymerization of systems containing ethylenically unsaturated compounds.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: April 28, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Manfred Kohler, Jorg Ohngemach, Eike Poetsch, Rudolf Eidenschink, Gerhard Greber, Dieter Dorsch, Jurgen Gehlhaus, Konrad Dorfner, Hans Ludwig Hirsch
  • Coreactive photoinitators
    Patent number: 5532112
    Abstract: Compounds of the formulaRG--A--INwhereinIN is a photoinitiator basic structureA is a spacer group andRG is a functional reactive groupcan be employed as coreactive photoinitiators for photopolymerization of systems containing ethylenically unsaturated compounds.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: July 2, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Manfred Kohler, Jorg Ohngemach, Eike Poetsch, Rudolf Eidenschink, Gerhard Greber, Dieter Dorsch, Jurgen Gehlhaus, Konrad Dorfner, Hans L. Hirsch
  • Two-layer system
    Patent number: 5071732
    Abstract: Radiation-curable two-layer systems containing immobilized photoinitiators are suitable for the production of coatings of constant thickness and good adhesion, and relief structures of high resolution and edge steepness.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: December 10, 1991
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Manfred Kohler, Eike Poetsch, Jorg Ohngemach, Dieter Dorsch, Rudolf Eidenschink, Gerhard Greber
  • Two-layer system
    Patent number: 4914004
    Abstract: Radiation-curable two-layer systems containing immobilized photoinitiators are suitable for the production of coatings of constant thickness and good adhesion, and relief structures of high resolution and edge steepness.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: April 3, 1990
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Manfred Kohler, Eike Poetsch, Jorg Ohngemach, Dieter Dorsch, Rudolf Eidenschink, Gerhard Greber