Patents by Inventor KEITH DRENGLER

KEITH DRENGLER 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 Preparation of Iopamidol
    Publication number: 20070078281
    Abstract: The present invention discloses a process for the preparation of pure non-ionic contrast agents. The invention also includes a method for purifying the non-ionic contrast agents.
    Type: Application
    Filed: August 16, 2006
    Publication date: April 5, 2007
    Applicant: BRACCO IMAGING S.P.A.
    Inventors: Richard Lorenzini, Ashok Bhatia, Steven Chamberlin, Keith Drengler, John Hufnagel, Xiu Wang
  • Process for the preparation of iopamidol
    Publication number: 20050192465
    Abstract: The present invention discloses a process for the preparation of pure non-ionic contrast agents. The invention also includes a method for purifying the non-ionic contrast agents.
    Type: Application
    Filed: February 24, 2005
    Publication date: September 1, 2005
    Applicant: Bracco Imaging S.p.A.
    Inventors: Richard Lorenzini, Ashok Bhatia, Steven Chamberlin, Keith Drengler, John Hufnagel, Xiu Wang
  • PROCESS FOR THE PREPARATION OF IOPAMIDOL
    Publication number: 20010056206
    Abstract: The present invention discloses a process for the preparation of pure non-ionic contrast agents. The invention also includes a method for purifying the non-ionic contrast agents.
    Type: Application
    Filed: February 26, 1999
    Publication date: December 27, 2001
    Inventors: RICHARD LORENZINI, ASHOK BHATIA, STEVE CHAMBERLIN, KEITH DRENGLER, JOHN HUFNAGEL, XIU WANG