Patents by Inventor John Fritch

John Fritch 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).

  • Processes for Preparing Substituted N-Aryl-N'-[3-(1H-Pyrazol-5-Yl) Phenyl] Ureas and Intermediates Thereof
    Publication number: 20070293685
    Abstract: The present invention is directed to processes for the preparation of substituted phenylpyrazole ureas of Formula (I), that are useful as 5-HT2A serotonin receptor modulators for the treatment of disease.
    Type: Application
    Filed: July 21, 2004
    Publication date: December 20, 2007
    Applicant: Arena Pharmaceuticals, Inc.
    Inventors: John Fritch, Fiona Carleton, Edward Lally, Hongmei Li, Bradley Teegarden
  • Processes for preparing aromatic ethers
    Publication number: 20060155129
    Abstract: The present invention relates to processes for preparing aromatic ether compounds that are modulators of glucose metabolism and therefore useful in the treatment of metabolic disorders such as diabetes and obesity.
    Type: Application
    Filed: January 9, 2006
    Publication date: July 13, 2006
    Inventors: Tawfik Gharbaoui, John Fritch, Ashwin Krishnan, Beverly Throop, Naomi Kato
  • Process for the production of vinyl acetate
    Patent number: 6852877
    Abstract: A process for the production of vinyl acetate comprising contacting in a first reaction zone a gaseous feedstock comprising essentially ethane with a molecular oxygen-containing gas in the presence of a catalyst to produce a first product stream comprising acetic acid; contacting in a second reaction zone a gaseous feedstock comprising essentially ethane with a molecular oxygen-containing gas in the product stream comprising ethylene; contacting in a third reaction one the first gaseous product stream and the second gaseous product stream with a molecular oxygen-containing gas in the presence of a catalyst to produce a fourth product stream comprising vinyl acetate; separating the product stream from step (3) and recovering vinyl acetate from said product stream from step (3).
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: February 8, 2005
    Assignee: Celanese International Corp.
    Inventors: Sabine Zeyss, Uwe Dingerdissen, John Fritch
  • Integrated process for the production of vinyl acetate
    Patent number: 6790983
    Abstract: An integrated process for the production of vinyl acetate comprising the steps of: (a) containing in a first reaction zone a gaseous feedstock comprising essentially ethane with a molecular oxygen-containing gas in the presence of a catalyst to produce a first product stream comprising acetic acid and ethylene; (b) containing in a second reaction zone the first gaseous product stream with a molecular oxygen-containing gas in the presence of a catalyst to produce a second product stream comprising vinyl acetate; (c) separating the product stream from step (b) recovering vinyl acetate from the product stream from step (b).
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: September 14, 2004
    Assignee: Celanese International Corporation
    Inventors: Sabine Zeyss, Uwe Dingerdissen, John Fritch