Patents by Inventor Dirk Matthijs

Dirk Matthijs 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 of injection moulding a syringe from polyethylene wax containing polypropylenne, syringe obtained thereby and particulate composition therefor
    Patent number: 7182987
    Abstract: The invention provides a syringe barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax. The invention further provides a syringe having a barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax and a polypropylene composition suitable for such moulding.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: February 27, 2007
    Assignee: Borealis Technology Oy
    Inventors: Dirk Matthijs, Svein Jamtvedt, Mika Härkönen, Harry Øysaed
  • Process of injection moulding a syringe from polyethylene wax containing polypropylenne, syringe obtained thereby and particulate composition therefor
    Publication number: 20040030287
    Abstract: The invention provides a syringe barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax. The invention further provides a syringe having a barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax and a polypropylene composition suitable for such moulding.
    Type: Application
    Filed: July 29, 2003
    Publication date: February 12, 2004
    Inventors: Dirk Matthijs, Svein Jamtvedt, Mika Harkonen, Harry Oysaed