Patents by Inventor David Millar Walker

David Millar Walker 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).

  • POLYMORPH
    Publication number: 20150307543
    Abstract: The present invention relates to a new polymorphic form of the compound diosgenyl ?-L-rhamnopyranosyl-(1->2)-?-D-glucopyranoside (compound I) and pharmaceutical compositions containing this polymorph
    Type: Application
    Filed: April 24, 2013
    Publication date: October 29, 2015
    Applicant: ONCOLOGY RESEARCH INTERNATIONAL LIMITED
    Inventors: David Millar Walker, Philip Andrew Marshall
  • SYNTHESIS
    Publication number: 20150105543
    Abstract: The present invention provides an improved synthesis of a class of steroid saponins. Furthermore, the present invention provides a method of selectively discriminating between the C2 and C3 hydroxyl groups of a mono-glycosylated steroid saponin—a key step in the preparation of this class of compounds. Additionally, the present invention provides a range of steroid saponin derivatives, and methods of making them.
    Type: Application
    Filed: April 24, 2013
    Publication date: April 16, 2015
    Applicant: Oncology Research International Limited
    Inventors: Andrew Clive Muscroft-Taylor, Philip Andrew Marshall, Jennifer Mary Mason, David Millar Walker