Patents by Inventor Petteri Riivari

Petteri Riivari 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).

  • Publication number: 20030178345
    Abstract: The invention relates to a method for processing waste, in particular for utilising the recyclable material contained in waste, and a waste processing plant, in particular a plant processing waste fractions suitable for recycling of material. At first, the waste is pre-treated for removing undesirable matter. Fibre waste is separated from the other waste and processed into a raw material for paper or board. Plastics-containing matter is separated and processed into plastic oil by pyrolysis. The by-products from the processes and the waste fraction which remains of the processing are used as energy for the needs of the processes. The method can additionally comprise a stage in which waste wood is separated from the other waste and processed into a raw material for particleboard or equivalent.
    Type: Application
    Filed: May 23, 2003
    Publication date: September 25, 2003
    Inventors: Jouko Hautala, Petri Ristola, Petteri Riivari, Kai Sipila