Patents by Inventor Paul G. Butterly

Paul G. Butterly 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 preparing crystalline salts of amoxycillin
    Publication number: 20020137926
    Abstract: A novel process for preparing a crystalline alkali metal salt of amoxycillin is dislcosed.
    Type: Application
    Filed: February 13, 2002
    Publication date: September 26, 2002
    Applicant: SmithKline Beecham Corporation
    Inventors: Esin F. Kosal, Paul G. Butterly
  • Potassium clavulanate in rosette form
    Patent number: 5288861
    Abstract: Potassium clavulanate exists in a novel crystalline habit, namely in the form of rosettes, having improved processing properties. The novel form may, for example, be obtained by crystallization or recrystallization using inverse precipitation, preferably at 8.degree.-15.degree. C.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: February 22, 1994
    Assignee: Beecham Group plc
    Inventors: Dennis E. Clark, Shaukat H. Malik, Paul G. Butterly, Clive E. Badman, Jeffrey D. Haseler