Patents by Inventor Sherry A. Severnak

Sherry A. Severnak 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).

  • 4-phenyl-4-N-(phenyl) amido piperidine derivatives and pharmaceutical compositions and method employing such compounds
    Patent number: 5013742
    Abstract: Compounds are disclosed of the formula ##STR1## where R.sup.2 is unsubstituted or substituted phenyl, R.sup.3 is lower alkyl, lower cycloalkyl or lower alkoxy lower alkyl, and L is selected from a wide variety of groups. This new class of compounds exhibit improved analgesic and anesthetic properties.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: May 7, 1991
    Assignee: BOC, Inc.
    Inventors: Linas V. Kudzma, H. Kenneth Spencer, Sherry A. Severnak
  • 4-phenyl-4-[N-(phenyl)amido]piperidine compounds and pharmaceutical compositions employing such compounds
    Patent number: 4957929
    Abstract: Compounds are disclosed of the formula ##STR1## where R.sup.2 is unsubstituted or substituted phenyl, R.sup.3 is lower alkyl, lower cycloalkyl or lower alkoxy lower alkyl, and L is selected from a wide variety of groups. This new class of compounds exhibit improved analgesic and anesthetic properties.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: September 18, 1990
    Assignee: BOC, Inc.
    Inventors: Linas V. Kudzma, H. Kenneth Spencer, Sherry A. Severnak
  • 4-Phenyl-4-(N-(phenyl)amido) piperidine derivatives and pharmaceutical compositions and method employing such compounds
    Patent number: 4921864
    Abstract: Compounds are disclosed of the formula ##STR1## where R.sup.2 is unsubstituted or substituted phenyl, R.sup.3 is lower alkyl, lower cycloalkyl or lower alkoxy lower alkyl, and L is selected from a wide variety of groups. This new class of compounds exhibit improved analgesic and anesthetic properties.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: May 1, 1990
    Assignee: BOC, Inc.
    Inventors: Linas V. Kudzma, H. Kenneth Spencer, Sherry A. Severnak
  • Stereoselective preparation of 3-substituted-4-piperidine compounds and derivatives
    Patent number: 4849521
    Abstract: The present invention is directed to an improved stereoselective tandem substitution and reduction of an imine precursor to the cis form of 3-substituted-4-(phenylanilo)piperidine compounds or their substituted derivatives.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: July 18, 1989
    Assignee: BOC, Inc.
    Inventors: Linas V. Kudzma, H. Kenneth Spencer, Sherry A. Severnak
  • 4-phenyl-4-(N-(phenyl)amido) piperidine derivatives and pharmaceutical compositions and method employing such compounds
    Patent number: 4791121
    Abstract: Compounds are disclosed of the formula ##STR1## where R.sup.2 is unsubstituted or substituted phenyl, R.sup.3 is lower alkyl, lower cycloalkyl or lower alkoxy lower alkyl, and L is selected from a wide variety of groups. This new class of compounds exhibit improved analgesic and anesthetic properties.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: December 13, 1988
    Assignee: The BOC Group, Inc.
    Inventors: Linas V. Kudzma, H. Kenneth Spencer, Sherry A. Severnak