Patents by Inventor Stan Litman

Stan Litman 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).

  • Magnetically activated valve for ink
    Patent number: 6402309
    Abstract: A magnetic sealing cap for dispensing inkjet ink from a bottle into a receptacle. The cap may include two magnetic sealing plates. The cap may also include a ball and ring having a magnetic attraction to each other. The magnetic seal of the invention is reversibly broken by a displacement pin exhibited by the receptacle.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: June 11, 2002
    Assignee: Inkjet, Inc.
    Inventor: Stan Litman