Patents by Inventor Frank Herbert Puterbaugh

Frank Herbert Puterbaugh 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).

  • Blends of calcium carbonate and LLDPE
    Patent number: 5922800
    Abstract: Film forming blends, and films thereof, comprise copolymers of ethylene and alpha-olefins of 4 to 10 carbon atoms (LLDPE) containing up to about 35% of calcium carbonate exhibit excellent film impact properties which are sustained over time, without reduction in modulus or stiffness.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: July 13, 1999
    Assignee: Mobil Oil Corporation
    Inventors: Vincent J. Crotty, Vaseem Firdaus, Frank Herbert Puterbaugh