Patents by Inventor Nils Erik Johansson

Nils Erik Johansson 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).

  • Watercraft
    Patent number: 5941189
    Abstract: A watercraft has an abovewater passenger and/or cargo section as well as an underwater propulsion section. The two sections are connected by telescoping struts.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: August 24, 1999
    Inventor: Nils Erik Johansson