Patents by Inventor Donna R. Quillen

Donna R. Quillen 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).

  • Process for preparing 1-cyano-3H-dibenz[f,ij]isoquinoline-2,7-diones and their use as toners for polyesters
    Patent number: 5340910
    Abstract: Provided is an improved process for the synthesis of 1-cyano-3H-dibenz[f,ij] isoquinoline-2,7-dione compounds, and process exhibiting improvements in quality of products, safety, fewer environmental concerns and economics when compared to presently known processes. The compounds are useful as colorants for polyesters, and selected compounds and when combined with small quantities of certain red colorants are particularly efficacious as blue toners for polyesters.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: August 23, 1994
    Assignee: Eastman Chemical Company
    Inventors: Kim S. Chamberlin, Wayne P. Pruett, Max A. Weaver, Samuel D. Hilbert, Donna R. Quillen, Preston K. Salyer
  • Process for preparing 1-cyano-3H-dibenz[f,ij] isoquinoline-2,7-diones and their use as toners for polyesters
    Patent number: 5252699
    Abstract: Provided is an improved process for the synthesis of 1-cyano-3H-dibenz[f,ij] isoquinoline-2,7-dione compounds, and process exhibiting improvements in quality of products, safety, fewer environmental concerns and economics when compared to presently known processes. The compounds are useful as colorants for polyesters, and selected compounds and when combined with small quantities of certain red colorants are particularly efficacious as blue toners for polyesters.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: October 12, 1993
    Assignee: Eastman Kodak Company
    Inventors: Kim S. Chamberlin, Wayne P. Pruett, Max A. Weaver, Samuel D. Hilbert, Donna R. Quillen, Preston K. Salyer