Patents by Inventor Glen Anthony Thommes

Glen Anthony Thommes 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).

  • Photohardenable epoxy composition
    Patent number: 5707780
    Abstract: A photohardenable composition especially suitable for use in solid imaging. The compositions are characterized by their improved photospeed in combined with excellent initial green strength. The compositions allows for the production of articles by solid imaging processing techniques that show little or no distortion, high accuracy, excellent clarity. The compositions are low in toxicity and have low sensitivity to water.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: January 13, 1998
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John Alan Lawton, William John Nebe, Glen Anthony Thommes, Jonathan V. Caspar
  • Stabilizers for use with photoacid precursor formulations
    Patent number: 5665792
    Abstract: The present invention discloses stabilizers for formulations containing photoacid precursors and cationically polymerizable materials. The stabilizers have a limited solubility in the formulations and are in solubility equilibrium in the formulation. The stabilizers being present as a solid phase in the formulation in excess of their solubility limit, the concentration of the stabilizers is continuously replenished as the stabilizer reacts with undesired free acid.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 9, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John Alan Lawton, William John Nebe, Glen Anthony Thommes