Patents by Inventor Hanna Arstila

Hanna Arstila 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).

  • Multilayer Material
    Publication number: 20080065123
    Abstract: The invention relates to a multilayer material comprising at least two layers of web and at least one layer of particles, said particles being arranged between said at least two layers of web. According to the invention at least a part of said multilayer material is made of bioactive glass and said particles are sol-gel derived silica particles. The invention also relates to different uses of said multilayer material.
    Type: Application
    Filed: June 29, 2005
    Publication date: March 13, 2008
    Inventors: Antti Yli-Urpo, Heimo Ylanen, Joni Korventausta, Hanna Arstila, Timo Narhi, Mikko Hupa, Pekka Vallittu