Patents by Inventor Sandor Hernadi

Sandor Hernadi 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).

  • Patent number: 4753250
    Abstract: A process for producing cigarette filters comprising a compound containing L-ascorbic acid and having the compound added to an adsorptional filter material in a quantity of 5-200% of the amount of said adsorptional filter.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: June 28, 1988
    Assignee: Pecsi Dohanygyar
    Inventors: Istvan Bitter, Jozsef Gabor, Sandor Hernadi, Viktoria Horvath, Sandor Irimi, Adam Molnar, Istvan Rusznak, Lajos Trezl