Patents by Inventor Irvin R. Feins

Irvin R. Feins 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).

  • Filter material for selective removal of aldehydes for cigarette smoke
    Patent number: 4182743
    Abstract: A gas-permeable substrate, particularly adapted for the selective removal of aldehydes from gases, comprising a granular carrier containing concentrated hydrogen peroxide, water and a hydrophilic stabilizer for said hydrogen peroxide.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: January 8, 1980
    Assignee: Philip Morris Incorporated
    Inventors: Norman B. Rainer, Irvin R. Feins