Patents by Inventor Derek Ralph Harrison

Derek Ralph Harrison 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).

  • 1,2-Dihydro-6-phenyl-1H,4H-imidazobenzodiazepin-1-ones
    Patent number: 4044142
    Abstract: Novel 1,2-dihydro-6-phenyl-1H,4H-imidazo[1,2-a][1,4]-benzodiazepin-1-ones of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, halogen, nitro and trifluoromethyl, R.sub.1 is selected from the group consisting of hydrogen and halogen, R.sub.2 is selected from the group consisting of hydrogen and methyl and R.sub.3 and R.sub.4 are individually selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, hydroxyalkyl of 1 to 5 carbon atoms, aminoalkyl of 1 to 5 carbon atoms, mono- and di-alkylaminoalkyl with each alkyl having 1 to 5 carbon atoms, cycloalkyl of 3 to 8 carbon atoms and mono and di-nuclear aryl or R.sub.3 and R.sub.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: August 23, 1977
    Assignee: Roussel Uclaf
    Inventors: John Bodenham Taylor, Derek Ralph Harrison
  • Derivatives of 4(3H)-quinazolone, pharmaceutical compositions thereof and methods of use
    Patent number: 3991193
    Abstract: A derivative of 4(3H)-quinazolone, its method of preparation, and pharmaceutical compositions are described. In particular, 2-methyl-3-(o-cyanophenyl)-4(3H)-quinazolone and its acid addition salts are described. This compound may be prepared by the reaction of N-acetylanthranilic acid with anthranilonitrile in the presence of a dehydrating agent. The quinazolone and its salts possess pharmacological activity.
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: November 9, 1976
    Assignee: Roussel-UCLAF
    Inventors: John Bodenham Taylor, Derek Ralph Harrison