Patents by Inventor Gilbert Marciniak

Gilbert Marciniak 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).

  • Process for preparing 2,3-dihydro-benzofuranol derivatives
    Patent number: 5698696
    Abstract: This invention relates to a novel process for preparing 2,3-dihydro-benzofuranol derivatives and to the novel intermediates produced thereby.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: December 16, 1997
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: Gilbert Marciniak, Richard A. Schnettler, Timothy A. Ayers, Damian J. Krysan
  • Ascorbic acid derivatives
    Patent number: 5270336
    Abstract: Derivatives of 3,4-dihydroxy-2,5-dihydrofuran-5-ones, intermediates and processes useful for their preparation are disclosed. These compounds are useful as free-radical scavengers and exhibit cellular protective properties.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: December 14, 1993
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Gilbert Marciniak, J. Martin Grisar
  • Ascorbic acid derivatives
    Patent number: 5175188
    Abstract: Derivatives of 3,4-dihydroxy-2,5-dihydrofuran-5-ones, intermediates and processes useful for their preparation are disclosed. These compounds are useful as free-radical scavengers and exhibit cellular protective properties.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: December 29, 1992
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Gilbert Marciniak, J. Martin Grisar