Patents by Inventor Joseph Hanulec

Joseph Hanulec 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).

  • Phase controlled frequency division multiplexed communications system
    Patent number: 4683565
    Abstract: The apparatus of this invention is a system for providing frequency synchronization and predictable phase output of the transmitted signals of a multi-channel frequency division multiplexed communications system.
    Type: Grant
    Filed: March 15, 1985
    Date of Patent: July 28, 1987
    Assignee: ISC Cardion Electronics, Inc.
    Inventor: Joseph Hanulec