Patents by Inventor Benjamin M. Marshall

Benjamin M. Marshall 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).

  • Method of purifying crude noscapine
    Patent number: 8394814
    Abstract: The invention provides a method for separating noscapine from an opium source without substantially changing the color of the noscapine.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: March 12, 2013
    Assignee: Mallinekrodt LLC
    Inventors: Benjamin M. Marshall, Keith G. Tomazi
  • Method of purifying crude noscapine
    Publication number: 20100081822
    Abstract: The invention provides a method for separating noscapine from an opium source without substantially changing the color of the noscapine.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 1, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Benjamin M. Marshall, Keith G. Tomazi