Patents by Inventor Seppo Särelä

Seppo Särelä 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).

  • Method for manufacturing base paper for release paper
    Patent number: 7387703
    Abstract: In a method for manufacturing base paper for release paper, the body layer, which is formed of a fibre raw material, is surface sized with a surface treatment agent. Before the surface sizing, the body layer, whose moisture level is at least 13 wt. %, is calendered in a calender that comprises at least one nip formed between a hard-faced roll and a soft counter surface.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 17, 2008
    Assignee: UPM-Kymmene Corporation
    Inventors: Timo Koskinen, Kaj Koskinen, Pekka Aho, Seppo Särelä