Patents by Inventor Helmut Ochner

Helmut Ochner 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).

  • Rechargeable battery pack
    Patent number: D344260
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: February 15, 1994
    Assignee: Steven G. Leiserson
    Inventors: Steven G. Leiserson, Helmut Ochner
  • Rechargeable battery pack
    Patent number: D346784
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: May 10, 1994
    Inventors: Steven G. Leiserson, Helmut Ochner