Patents by Inventor Peter Robert Virkler

Peter Robert Virkler 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).

  • Method for preparation of an intermediate dye product
    Patent number: 6458967
    Abstract: The present invention provides a novel method for the synthesis of an intermediate dye product having the following formula: wherein L is S, Te, or Se; R1 and R2 are either the same or different aryl or alkyl compounds; R3 is hydrogen or a short chain alkyl group; and Z is an anion. The process to formulate this intermediate compound entails reacting an R1-acetylene compound with an R2-acetylene compound (compounds A) into an enol ether compound with the R1 and/or R2 constituents (compound D). And from compound D, it forms into an intermediate dye compound having an L-based cyclic ring with the R1 and/or R2 constituents (compound F). With compound F the desired dye can be made with a greater overall yield for mass production.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: October 1, 2002
    Assignee: The Research Foundation of State University of New York
    Inventors: Michael Ray Detty, Peter Robert Virkler
  • Method for preparation of an intermediate dye product
    Publication number: 20020022723
    Abstract: The present invention provides a novel method for the synthesis of an intermediate dye product having the following formula: 1
    Type: Application
    Filed: June 22, 2001
    Publication date: February 21, 2002
    Inventors: Michael Ray Detty, Peter Robert Virkler