Patents by Inventor Donald R. Spalding

Donald R. Spalding 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).

  • Ink jet recording medium comprising (a) water expansible colloidal clay (b) silica and (c) water insoluble synthetic binder
    Patent number: 4792487
    Abstract: An ink jet printing substrate particularly useful as a coating for paper for multi-color, water base ink jet printing consisting essentially of a high swelling montmorillonite clay, and optionally including a high surface area pigment, such as a synthetic silica or calcium carbonate and a water-insoluble binder.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: December 20, 1988
    Assignee: James River Corporation of Virginia
    Inventors: Herbert H. Schubring, Donald R. Spalding, Kenneth A. Pollart