Patents by Inventor Stefan Favre

Stefan Favre 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 an absorbent composite in a sanitary product, and an absorbent composite manufactured with the method
    Patent number: 5922163
    Abstract: A method for manufacturing an absorbent composite in a sanitary product wherein at least one liquid absorbing layer (14) is formed by the dry forming technique. The absorbing layer includes natural fibers, such as wood fibres, or natural fibers and plastic fibers mixed with one another, and superabsorbent material (15), and is bound by heat. At least one material layer (13) is dry formed on the absorbing layer (14), before the absorbing layer is bound by heat, from fibers crimping in connection with the binding taking place by heat.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: July 13, 1999
    Assignee: Yhtyneet Paperitehtaat Oy
    Inventors: Pekka Helynranta, Stefan Favre, Helmer Gustafsson