Patents by Inventor Leif I. R. Carlsson

Leif I. R. Carlsson 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).

  • Nozzle head for oil burners
    Patent number: D251851
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: May 15, 1979
    Assignee: B. Palm & Co. Aktiebolag
    Inventors: Bjorn O. M. Palm, Leif I. R. Carlsson, David S. B. Brengdahl