Patents by Inventor Lawrence J. Simmons

Lawrence J. Simmons 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: 7267881
    Abstract: A protective surface modification system employs two separate formulations to enhance visual appearance and in many instances provide abrasion resistance on a surface such as a countertop.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: September 11, 2007
    Inventors: Rolf Thomas Weberg, Shitong Zhu, Timothy James Sanford, Lawrence J. Simmons
  • Patent number: 6746640
    Abstract: A molding composition including reactive high-volatility monomeric groups, such as acrylics, at least one primary thermal initiator and at least one secondary thermal initiator is described. Molding process using molding compositions including reactive high-volatility monomeric groups are also described.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: June 8, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Rolf Thomas Weberg, Lawrence J. Simmons, Richard Reid Gleason
  • Publication number: 20030104743
    Abstract: A molding composition including reactive high-volatility monomeric groups, such as acrylics, at least one primary thermal initiator and at least one secondary thermal initiator is described. Molding process using molding compositions including reactive high-volatility monomeric groups are also described.
    Type: Application
    Filed: June 26, 2002
    Publication date: June 5, 2003
    Inventors: Rolf Thomas Weberg, Lawrence J. Simmons, Richard Reid Gleason
  • Patent number: 6429158
    Abstract: A molding composition including reactive high-volatility monomeric groups, such as acrylics, at least one primary thermal initiator and at least one secondary thermal initiator is described. Molding processs using molding compositions including reactive high-volatility monomeric groups are also described.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: August 6, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Rolf Thomas Weberg, Lawrence J. Simmons, Richard Reid Gleason
  • Patent number: 6203911
    Abstract: A molding composition including reactive high-volatility monomeric groups, such as acrylics, at least one primary thermal initiator and at least one secondary thermal initiator is described. Molding processs using molding compositions including reactive high-volatility monomeric groups are also described.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: March 20, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Rolf Thomas Weberg, Lawrence J. Simmons, Richard Reid Gleason