Patents by Inventor Lars Fahlen

Lars Fahlen 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 decomposing ozone
    Patent number: 4292493
    Abstract: In welding or working operations using an electric arc a nitrogen compound is introduced into the working or welding area for the purpose of decomposing ozone in said area. The nitrogen compound is preferably purely nitric oxide, but may also be nitrous oxide (N.sub.2 O) or ammonia (NH.sub.3).
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: September 29, 1981
    Assignee: AGA Aktiebolag
    Inventors: Lennart Selander, Lars Fahlen, Ladislav Sipek