Patents by Inventor Richard C. Woudenberg, Jr.

Richard C. Woudenberg, Jr. 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).

  • Marking substrates
    Patent number: 6835424
    Abstract: A marking composition includes a polymerizable first material that comprises silicon and a second material capable of extending polymeric chains of the first material, wherein the marking composition is capable of undergoing a change that can be detected optically when the composition is contacted with energy.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: December 28, 2004
    Assignee: Markem Corporation
    Inventors: Richard J. Larson, Jr., Michael P. Secord, Richard C. Woudenberg, Jr.
  • Marking substrates
    Patent number: 6835457
    Abstract: A marking composition includes a polymerizable first material that comprises silicon and a second material capable of extending polymeric chains of the first material, wherein the marking composition is capable of undergoing a change that can be detected optically when the composition is contacted with energy.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: December 28, 2004
    Assignee: Markem Corporation
    Inventors: Richard J. Larson, Jr., Michael P. Secord, Richard C. Woudenberg, Jr.