Patents by Inventor Philippa Catherine Evans

Philippa Catherine Evans 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).

  • Hot melt ink jet vehicles
    Patent number: 6255432
    Abstract: A hot melt inkjet vehicle is obtained by reacting a mono- or diisocyanate with functional amide materials. The functional amides are the reaction products of hydroxy functional primary and/or secondary amines and/or diprimary diamines together with a monofuntional carboxylic acid and/or hydroxy carboxylic acid and/or a difunctional carboxylic acid.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: July 3, 2001
    Assignee: Coates Brothers PLC
    Inventors: Philippa Catherine Evans, Stephen Anthony Hall