Patents by Inventor Helmut L. Dull

Helmut L. Dull 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).

  • Passive electric component
    Patent number: 4984130
    Abstract: A passive electric component suitable for SMD-technique and having a cylindrical supporting member or a supporting member in the form of a rectangular parallelepiped and having electric connection elements at its ends which surround the supporting member in the form of a tube and do not cover the end faces of the supporting member.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: January 8, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Helmut L. Dull, Horst W. Flunkert