Patents by Inventor John T. Sheehan

John T. Sheehan 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).

  • CNS active compounds
    Patent number: 4022897
    Abstract: Compounds of the formula ##STR1## wherein R may be hydrogen or a straight or branched chain alkyl radical of from 1 to 10 carbon atoms, aryl of from 6 to 10 carbon atoms, or aralkyl of from 7 to 10 carbon atoms;Y may be hydrogen, alkyl of from 1 to 4 carbons, CF.sub.3, F, Cl, or Br; andZ may be hydrogen or as defined hereinafter.These compounds are useful as central nervous system stimulants or more specifically in enhancing performance or as mood elevators.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: May 10, 1977
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Harry Louis Yale, John T. Sheehan
  • L-Aspartyl dipeptides as sweetening agents
    Patent number: 3978034
    Abstract: Dipeptides of the formula: ##EQU1## wherein n is an integer from 0 to 5, R.sub.1 is an alkyl, alkylaryl or alicyclic radical, and R.sub.2 is a cycloalkenyl radical, and, in addition, may be phenyl when n is 0. The carbon marked with an asterisk is always of the L-configuration. These compounds have a sweet taste and are useful as sweetening agents.
    Type: Grant
    Filed: November 12, 1969
    Date of Patent: August 31, 1976
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: John T. Sheehan, Miguel A. Ondetti