Patents by Inventor George Robert Wellman

George Robert Wellman 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).

  • Crystallization process for producing fine crystal products
    Publication number: 20040028582
    Abstract: The invention relates to a process for the crystallisation of a chemical substance, and more particularly a substance to be used as a pharmaceutically active agent.
    Type: Application
    Filed: April 30, 2003
    Publication date: February 12, 2004
    Applicants: SmithKline Beecham Corporation, SmithKline Beecham p.l.c.
    Inventors: Stephen Thomas Carpenter, George Robert Wellman
  • Imidazolemethylphosphonium salts
    Patent number: 4104472
    Abstract: New imidazolemethylphosphonium salts having a degradable group at the 2-position which are useful intermediates for preparing histamine H.sub.2 antagonists.
    Type: Grant
    Filed: May 24, 1977
    Date of Patent: August 1, 1978
    Assignee: SmithKline Corporation
    Inventors: Clifford Steven Labaw, Robert Lee Webb, George Robert Wellman
  • Process for preparing 5-(alkoxy- and aminoethyl thio)methylthiazole compounds
    Patent number: 4049669
    Abstract: A process for preparing 5-(alkoxy- and aminoethylthio)methylthiazole compounds via displacement of the trisubstituted phosphonium group from 5-(trisubstituted phosphonium)methylthiazole compounds is disclosed.
    Type: Grant
    Filed: October 29, 1975
    Date of Patent: September 20, 1977
    Assignee: SmithKline Corporation
    Inventors: Bing Lun Lam, Joseph James Lewis, Robert Lee Webb, George Robert Wellman