Patents by Inventor Alpo A. Pollari

Alpo A. Pollari 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).

  • Sheet material
    Patent number: 5612129
    Abstract: The invention concerns a paper-based, soft or semi-hard sheet material which contains a core layer of compressed shredded paper with surface layers. The material is suited for use as inner end shields for paper reels, for example.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: March 18, 1997
    Assignee: Yhtyneet Paperitehtaat Oy
    Inventors: Hannu Karhuketo, Alpo A. Pollari, Pentti K. Rautanen