Patents by Inventor Anna Ahlqvist

Anna Ahlqvist 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 sterilization by radiation and by the use of an oxygen absorber, a container and a medical article sterilized by the process
    Patent number: 5881534
    Abstract: A novel process for sterilizing an article made from polymeric material by radiation sterilization. The article is enclosed in a gas impermeable package together with an oxygen absorber for a time sufficient to consume substantially all the oxygen in the package and the oxygen dissolved in the polymeric material. The article is prefereably intended for medical use and can contain a radiation sterilizable parenterally administerable preparation.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: March 16, 1999
    Assignee: Pharmacia & Upjohn AB
    Inventors: Anna Ahlqvist, Kjell Berglund, Stefan Lundmark, Jimmie Ward