Patents by Inventor John Piechnick

John Piechnick 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).

  • Planar transformer
    Patent number: 6906609
    Abstract: A transformer having at least one primary winding and one secondary winding. The windings are disposed between walls of a first and second bobbin member. In preferred eombodiments, the creepage distance between the windings can be increased by providing a flange on one of the walls of one of the bobbin members.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: June 14, 2005
    Assignee: Astec International Limited
    Inventor: John Piechnick