Patents by Inventor Diane Armstrong

Diane Armstrong 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).

  • Printing device
    Patent number: 7938504
    Abstract: Embodiments of a biodegradable absorbent material in a permeable membrane are disclosed.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: May 10, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shirley Lee, Diane Armstrong
  • Printing device
    Publication number: 20080238992
    Abstract: Embodiments of a biodegradable absorbent material in a permeable membrane are disclosed.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 2, 2008
    Inventors: Shirley Lee, Diane Armstrong