Patents by Inventor David L. Winmill

David L. Winmill 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).

  • Radiation curable resin composition and rapid prototyping process using the same
    Patent number: 7183040
    Abstract: The invention relates to a radiation curable composition comprising relative to the total weight of the composition (A) 0–29 wt % of a cationically curable component having a linking aliphatic ester group, (B) 10–85 wt % of an epoxygroup containing component other than A, (C) 1–50 wt % of an oxetanegroup containing component, (D) 1–25 wt % of a multifunctional acrylate and a radical photoinitiator and a cationic photoinitiator.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: February 27, 2007
    Assignee: DSM IP Assets B.V.
    Inventors: Jens C Thies, Aylvin J. A. A. Dias, John A. Lawton, David L. Winmill, Jigeng Xu, Xiaorong You
  • Radiation curable resin composition and rapid prototyping process using the same
    Publication number: 20040142274
    Abstract: The invention relates to a radiation curable composition comprising relative to the total weight of the composition (A) 0-29 wt % of a cationically curable component having a linking aliphatic ester group, (B) 10-85 wt % of an epoxygroup containing component other than A, (C) 1-50 wt % of an oxetanegroup containing component, (D) 1-25 wt % of a multifunctional acrylate and a radical photoinitiator and a cationic photoinitiator.
    Type: Application
    Filed: July 21, 2003
    Publication date: July 22, 2004
    Inventors: Jens C. Thies, Aylvin J.A.A. Dias, John A. Lawton, David L. Winmill, Jigeng Xu