Patents by Inventor Susan C. Tilbury

Susan C. Tilbury 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).

  • Pressure-sensitive copying paper
    Patent number: 5177051
    Abstract: An extracted and isolated soy protein polymer is used for prevention of premature coloration in CFB pressure-sensitive copying paper which is neutral- or alkaline-sized with an alkyl ketene dimer and which utilizes an acid clay color developer composition. The soy protein polymer may be carried by the base paper, e.g. as a result of size press or size bath application, or may be present in the microcapsule coating.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: January 5, 1993
    Assignee: The Wiggins Teape Group Limited
    Inventors: Michael E. Hobson, Susan C. Tilbury