Patents by Inventor Leif Svedberg

Leif Svedberg 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).

  • Arrangement for raising and lowering a vertically suspended unit
    Patent number: 5379977
    Abstract: The invention relates to an arrangement for vertically raising and lowering a unit, e.g.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: January 10, 1995
    Assignee: Per Gunnar Ronn AB
    Inventors: Per G. Ronn, Leif Svedberg