Patents by Inventor Stefan Ionel

Stefan Ionel 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).

  • Bar-bell type exercising device
    Patent number: 4076236
    Abstract: The invention relates to a hantel easy to transport and store and the weight of which can be adapted at will. This hantle comprises a handle and at least two hollow bodies each connected, in a removable way, to one end of said handle. A plug closes tightly each hollow body which may be filled with water or other materials for use.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: February 28, 1978
    Inventor: Stefan Ionel