Patents by Inventor Robert J. Manfre

Robert J. Manfre 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).

  • Novel glycolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinol
    Patent number: 4403792
    Abstract: Glyolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinols are disclosed as color formers for use in transfer sets.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: September 13, 1983
    Assignee: American Cyanamid Company
    Inventors: Frank F. Cesark, Robert J. Manfre, Daniel W. Thomas
  • Bis(p-alkylphenylethynyl)anthracene
    Patent number: 4401585
    Abstract: Bis(p-alkylphenylethynyl)anthracenes are described for use as fluorescer components in chemiluminescent reaction mixtures and in precursor solutions or solid mixtures. Chemiluminescent mixtures comprising these fluorescers are shown to generate higher light capacity and higher quantum yields than those made with similar prior art fluorescers.
    Type: Grant
    Filed: January 21, 1982
    Date of Patent: August 30, 1983
    Assignee: American Cyanamid Company
    Inventors: Frank J. Arthen, Jr., Robert J. Manfre
  • Glycolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinol
    Patent number: 4343939
    Abstract: Glyolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinols are disclosed as color formers for use in transfer sets.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: August 10, 1982
    Assignee: American Cyanamid Company
    Inventors: Frank F. Cesark, Robert J. Manfre, Daniel W. Thomas
  • Processes for preparing 3,5,6-trichlorosalicylic acid and esters thereof
    Patent number: 4308395
    Abstract: An improved single-pot process for synthesis of 3,5,6-trichlorosalicylic acid and esters thereof is described. Salicylic acid is chlorinated first in concentrated sulfuric acid and then with iodine catalyst to make the trichlorosalicylic acid which is extracted and then reacted with an alcohol to make the ester.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: December 29, 1981
    Assignee: American Cyanamid Company
    Inventors: Robert J. Manfre, Arthur G. Mohan, Michael M. Rauhut