Patents by Inventor Patrick Verhoustraeten

Patrick Verhoustraeten 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).

  • Fluorescent maleimides and uses thereof
    Patent number: 6960667
    Abstract: The present invention is directed to maleimides and preparation of compounds of the formula I wherein R1 and R2 independently from each other stand for variously substituted, and R3 stands for allyl, variously substituted, with the proviso, that R1 and R2 not simultaneously stand for phenyl.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: November 1, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
  • Pigmented porous material
    Patent number: 6767620
    Abstract: A coloured porous material comprising in its pores an effectively colouring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and a process for its preparation. The instant coloured porous material powders are used as pigments for high molecular weight organic materials.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: July 27, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: John Zambounis, Patrick Verhoustraeten, Henri Dubas, Zhimin Hao, Patrice Bujard
  • Fluorescent maleimides and uses thereof
    Publication number: 20030189191
    Abstract: Fluorescent maleimides of the formula I 1
    Type: Application
    Filed: October 10, 2002
    Publication date: October 9, 2003
    Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
  • Fluorescent maleimides and uses thereof
    Patent number: 6508957
    Abstract: The present invention relates to methods for using a maleimide of formula (I) with the proviso that R1 and R2 do not simultaneously stand for phenyl or a maleimide of formula Ia as UV fluorescent material for void detection and for the preparation of scintillators films, luminescent solar energy collectors, organic electroluminescent devices, printing inks, non-impact printing inks, electrophotographic toners, color filters, and colored high molecular organic material.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: January 21, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
  • Pigmented porous material
    Publication number: 20030012943
    Abstract: The present invention relates to a colored porous material comprising in its pores an effectively coloring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and to a process for its preparation.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 16, 2003
    Inventors: John Zambounis, Patrick Verhoustraeten, Henri Dubas, Zhimin Hao, Patrice Bujard
  • Fluorescent maleimides and uses thereof
    Publication number: 20020065422
    Abstract: The present invention relates to methods for using a maleimide of formula (I) 1
    Type: Application
    Filed: May 21, 2001
    Publication date: May 30, 2002
    Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
  • PIGMENTED POROUS MATERIAL
    Publication number: 20010012559
    Abstract: The present invention relates to a coloured porous material comprising in its pores an effectively colouring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and to a process for its preparation. The present invention also relates to the use of the instant coloured porous material powders as pigments for high molecular weight organic materials.
    Type: Application
    Filed: June 11, 1998
    Publication date: August 9, 2001
    Inventors: JOHN ZAMBOUNIS, PATRICK VERHOUSTRAETEN, HENRI DUBAS, ZHIMIN HAO, PATRICE BUJARD
  • Fluorescent maleimides and uses thereof
    Patent number: 6258954
    Abstract: The present invention relates to compounds of formula I provided that R1 and R2 not simultaneously stand for phenyl, the use thereof in, for example, electroluminescent devices and as void detection compounds.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: July 10, 2001
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
  • Process for pigmenting porous metal oxides and materials pigmented therewith
    Patent number: 6258158
    Abstract: The present invention relates to a process for pigmenting a porous metal oxide by applying a solution of a soluble pigment derivative and regenerating the organic pigment by heating, whereby the organic pigment is deposited into the metal oxide's pores. The invention also relates to pigmented porous metal oxides and materials comprising a solid substrate and a surface layer of a pigmented metal oxide.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: July 10, 2001
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Philippe Bugnon, Seiji Homma, Patrick Verhoustraeten