Patents by Inventor Juhana Ruotoistenmaki

Juhana Ruotoistenmaki 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).

  • Process for preparing cyclic monomers
    Patent number: 6566570
    Abstract: A process for producing an unsaturated cyclic compound, comprising the steps of hydrochlorinating a terpene to produce a hydrochlorinated terpene, and subjecting the hydrochlorinate terpene to elimination of hydrogen chloride to form an unsaturated cyclic compound. The terpene is preferably &agr;-pinene, &bgr;-pinene, camphene or suitable turpentine fraction. The cyclic compounds can be used as monomers and by means of the invention it is thus possible to produce plastics from renewable raw material sources.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: May 20, 2003
    Assignee: Optatech Corporation
    Inventors: Christer Bergström, Arto Mölsä, Juhana Ruotoistenmäki
  • Amorphous olefin co/ter-polymers
    Patent number: 6054543
    Abstract: Amorphous and impact resistant co/ter-polymer made from olefins and aryl-substituted cyclic monomers by polymerizing using a catalyst, wherein the substituent is a phenyl- or indanyl-group and the catalyst is a metallocene-catalyst. Preferably said aryl-substituted cyclic monomer is phenyl-norbomene (5-phenyl-bicylo-2,2,1-hept-2-ene) or indanyl-norbomene (1,4-methano-1,4,4a,9a-tetrahydrofluorence).
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: April 25, 2000
    Assignee: Optatech Corporation
    Inventors: Christer Hans Bergstrom, Jukka Seppala, Juhana Ruotoistenmaki, Tapio Hase, Sari Paavola, Lars-Olof Pietila, Lisbeth Ahjopalo
  • Plaster acting as a dosing device
    Patent number: 5662626
    Abstract: The objective of the invention is a new plaster and a method for delivering the substance to be dosed to the skin (11) through the attached plaster. The invention can be used for the administering of different ingredients to be dosed by plaster.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: September 2, 1997
    Assignee: Diomedes Oy
    Inventors: Jussi Matias Ruotoistenmaki, Juhana Ruotoistenmaki, Jouko Artturi Nyman