Patents by Inventor Mark Ian Johnson

Mark Ian Johnson 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).

  • Tap
    Patent number: 6802341
    Abstract: A tap (4) including a tap body (6) within which is located a valve (14), an operating handle (12) mounted on the body and coupled to the valve, a security button (42) which is interlocked with the handle and/or valve, the arrangement being such that the valve can only be opened after activation of the security button.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: October 12, 2004
    Assignee: Australian Dynamic Products PTY Ltd.
    Inventors: Mark Ian Johnson, Alfred Blochlinger, Brian Charles Hamann, Hugh Yean Fung