Patents by Inventor Joseph R. Flisak

Joseph R. Flisak 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).

  • Synthesis of acid addition salts of hydroxylamines
    Patent number: 5663368
    Abstract: This invention relates to novel diastereomeric acid addition salts of homochiral hydroxylamines, to processes for obtaining such, to processes for the conversion thereof to the corresponding homochiral hydroxylamines, to certain novel homochiral hydroxylamines and the processes for using these as intermediates.
    Type: Grant
    Filed: April 11, 1996
    Date of Patent: September 2, 1997
    Assignee: Smithkline Beecham Corporation
    Inventors: Joseph R. Flisak, Stephen Torey Ross
  • Intermediates for preparing epoxy esters
    Patent number: 5208353
    Abstract: This invention relates to a process for preparing epoxy esters, and intermediates prepared by this process, in particular, to a process which produces non-racemic epoxy esters which are of use as intermediates in the preparation of pharmaceutical compounds.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: May 4, 1993
    Assignee: SmithKline Beecham Corp.
    Inventors: Joseph R. Flisak, Paul G. Gassman, Ivan Lantos, Wilford L. Mendelson
  • Process for preparation of epoxy esters and intermediates prepared thereby
    Patent number: 5110959
    Abstract: This invention relates to a process for preparing epoxy esters, and intermediates prepared by this process, in particular, to a process which produces non-racemic epoxy esters which are of use as intermediates in the preparation of pharmaceutical compounds.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: May 5, 1992
    Assignee: Smithkline Beckman Corp.
    Inventors: Joseph R. Flisak, Paul G. Gassman, Ivan Lantos, Wilford L. Mendelson