Patents by Inventor William R. Marsh

William R. Marsh 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).

  • Process for the production of 9-(.beta.-D-arabinofuranosyl)adenine, 5'-phosphate
    Patent number: 4123609
    Abstract: Process for the production of an ester product, 9-(.beta.-D-arabinofuranosyl)adenine, 5'-phosphate, in which the mixture resulting from reaction of 9-(.beta.-D-arabinofuranosyl)adenine with phosphorylating agent in trialkyl phosphate solvent is subjected to aqueous hydrolysis, the pH of the hydrolysis mixture is adjusted upward sufficiently to cause separation into aqueous and non-aqueous liquid phases, the trialkyl phosphate solvent is removed, and the product is precipitated from the residual aqueous mixture and isolated.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: October 31, 1978
    Assignee: Warner-Lambert Company
    Inventors: Walter E. Behnke, William R. Marsh, Theodore H. Haskell