Patents by Inventor Roger P. Mitcheli

Roger P. Mitcheli 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).

  • Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one
    Publication number: 20030158422
    Abstract: The present invention relates to a novel process for producing a &dgr;-lactone of the formula: 1
    Type: Application
    Filed: February 10, 2003
    Publication date: August 21, 2003
    Applicant: Roche Colorado Corporation
    Inventors: Michael P. Fleming, Yeun-Kwei Han, Lewis M. Hodges, David A. Johnston, Roger P. Mitcheli, Kurt Puentener, Chris R. Roberts, Michelangelo Scalone, Mark A. Schwindt, Robert J. Topping