Patents by Inventor John E. Emma

John E. Emma 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).

  • Certain triphenylphosphinimide derivatives
    Patent number: 4894368
    Abstract: Novel triarylphosphinimide derivatives having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each at the ortho or meta position, represent mono- or disubstituents and are selected from the group consisting of hydrogen, alkyl(C.sub.1 -C.sub.3), alkoxy(C.sub.1 -C.sub.3), trifluoromethyl and halogen; and R.sub.4 is selected from the group consisting of alkyl (C.sub.1 -C.sub.3), alkenyl(C.sub.2 -C.sub.3), alkynyl(C.sub.2 -C.sub.4), alkynyl(C.sub.2 -C.sub.4), cycloalkyl(C.sub.3 -C.sub.5), cycloalkyl(C.sub.3 -C.sub.6)methyl, 4-oxopentyl, 3-tetrahydrofuranyl, 2,3-dihydro-1H-iden-1-yl, 1-alkyl(C.sub.1 -C.sub.3)cyclopentyl, trans-2-alkyl(C.sub.1 -C.sub.3)cyclopentyl, trans-2-alkoxy(C.sub.1 -C.sub.3)cyclopentyl, 1-cyclopropylethyl, 2-methylcyclopropylmethyl, dicyclopropylmethyl, 2-, 3- or 4-pyridinylmethyl, 2-cyclopenten-1-yl, tetrahydro-2H-pyran-4-yl and cis and trans-2-methoxycyclohexyl; with the proviso that when R.sub.4 is alkyl(C.sub.1 -C.sub.3), R.sub.1, R.sub.2 and R.sub.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: January 16, 1990
    Assignee: American Cyanamid Company
    Inventors: Andrew S. Tomcufcik, John E. Emma, Nancy H. Eudy, Joseph W. Marsico, Howard Newman
  • Ester of (triarylphosphoranylidene)carbamic acid having diuretic and ability to lower plasma renin properties
    Patent number: 4767749
    Abstract: Novel triarylphosphinimide derivatives having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each at the ortho or meta position, represent mono- or disubstituents and are selected from the group consisting of hydrogen, alkyl(C.sub.1 -C.sub.3), alkoxy(C.sub.1 -C.sub.3), trifluoromethyl and halogen; and R.sub.4 is selected from the group consisting of alkyl(C.sub.1 -C.sub.3), alkenyl(C.sub.2 -C.sub.3), alkynyl(C.sub.2 -C.sub.4), cycloalkyl(C.sub.3 -C.sub.5), cycloalkyl(C.sub.3 -C.sub.6)methyl, 4-oxopentyl, 3-tetrahydrofuranyl, 2,3-dihydro-1H-inden-1-yl, 1-alkyl(C.sub.1 -C.sub.3)cyclopentyl, trans-2-alkyl(C.sub.1 -C.sub.3)cyclopentyl, trans-2-alkoxy(C.sub.1 -C.sub.3)cyclopentyl, 1-cyclopropylethyl, 2-methylcyclopropylmethyl, dicyclopropylmethyl, 2-, 3- or 4-pyridinylmethyl, 2-cyclopenten-1-yl, tetrahydro-2H-pyran-4-yl and cis and trans-2-methoxycyclohexyl; with the proviso that when R.sub.4 is alkyl(C.sub.1 -C.sub.3), R.sub.1, R.sub.2 and R.sub.3 may not each be hydrogen ##STR2## wherein R.sub.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: August 30, 1988
    Assignee: American Cyanamid Company
    Inventors: Andrew S. Tomcufcik, John E. Emma, Nancy H. Eudy, Joseph W. Marsico, Howard Newman