Patents by Inventor George Sosnovsky

George Sosnovsky 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).

  • Hindered spiro-ketal nitroxides
    Patent number: 7132540
    Abstract: The present invention discloses a series of novel hindered spiro-ketal nitroxides prepared by the ketalization reaction of 1,3-propanediols with triacetoneamine followed by oxidation. These novel spiro-ketals have unexpected advantages in hydrocarbon and monomer solubility which is important in styrene processing and refinery stream inhibition. Further, the invention shows an unexpected advantage over commercially available nitroxides in hydrocarbon solubility, especially in styrene and hydrocarbons. This invention also shows that these novel spiro-nitroxides are capable of inhibiting vinyl and acrylate polymerizations using an effective inhibition concentration of the nitroxide of the present invention.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: November 7, 2006
    Assignee: Nova Molecular Technologies Inc.
    Inventors: Mikolaj Jawdosiuk, George Sosnovsky, Jon Michael Clumpner, Anthony J. O'Lenick, Jr.