Patents by Inventor Bjorn Bergenstahl

Bjorn Bergenstahl 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).

  • NOVEL FORMULATION FOR USE IN PAIN MANAGEMENT
    Publication number: 20020127249
    Abstract: The present invention is directed to a novel topical pharmaceutical water-in-oil composition in form of a cream or lotion, comprising
    Type: Application
    Filed: December 21, 1998
    Publication date: September 12, 2002
    Inventors: BJORN BERGENSTAHL, KATAYOUN WELIN-BERGER
  • Non-ozone depleting cleaning composition for degreasing and defluxing purposes
    Patent number: 5482645
    Abstract: The invention relates to non-ozone depleting cleaning compositions for degreasing elements in manufacturing and engineering processes like oily machine parts and for defluxing printed circuit boards, used in the electric and electrical industry. The composition according to the invention contains at least one C.sub.6-12 alkyllactate ester, preferably 2-ethyl hexyl lactate, in an amount of 70-99% by weight and at least one emulsifier, preferably n-octanol, in an amount of 1-30% by weight. One of the main advantages of the present cleaning composition is based on the fact that in the rinsing step with water for removing the cleaning composition from the treated surface an emulsion is formed, which on the one hand is stable enough for having proper rinsing ability and on the other hand--after the rinsing step--will separate rather quickly into an oil and a water phase. This last mentioned phenomenon provides the benefits of reusing the active cleaning agent, i.e. the C.sub.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: January 9, 1996
    Assignee: Purac Biochem B.V.
    Inventors: Akihiro Maruyama, Bjorn Bergenstahl, Eric Van de Hoek