Patents by Inventor Stephen J. Cummings

Stephen J. Cummings 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).

  • Patent number: 12084585
    Abstract: An aqueous energy curable inkjet ink, including (A) a non-photopolymerizable resin, (B) a water-soluble photopolymerizable monomer, (C) a pigment having an average particle size of 50 to 300 nm, and (D) at least 25 wt. % water, based on a total weight of the aqueous energy curable inkjet ink. The water-soluble photopolymerizable monomer (B) is a mixture of (B1) a mono-ethylenically unsaturated monomer and (B2) a poly-ethylenically unsaturated monomer.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: September 10, 2024
    Assignee: Kao Corporation
    Inventors: Muslim H. Contractor, Spencer Q. Torline, Stephen J. Cummings, Stephen Buchanan
  • Patent number: D341447
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: November 16, 1993
    Assignee: MacDonald Johnston Engineering Co. Pty. Ltd.
    Inventor: Stephen J. Cummings
  • Patent number: D350592
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: September 13, 1994
    Assignee: Caroma Industries Limited
    Inventor: Stephen J. Cummings