Patents by Inventor Sven G. Wennlid

Sven G. Wennlid 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).

  • Method for assaying sulphur trioxide
    Patent number: 4629704
    Abstract: A method for assaying dry gases comprising sulphur trioxide capable of forming a mist. The gas to be assayed is introduced into a closed space and contacted therein with air comprising normal humidity which reacts with the gas to form a mist, whereafter the light-extinction properties of the mist are measured.
    Type: Grant
    Filed: October 26, 1984
    Date of Patent: December 16, 1986
    Assignee: Boliden Aktiebolag
    Inventor: Sven G. Wennlid