Patents by Inventor Pyn Maa

Pyn Maa 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).

  • Patent number: 5161129
    Abstract: A tide watch having a direct reading high tide indicator and a settable bezel for alignment with the high tide time on the watch dial so that the hour hand always indicates the approximate condition of the tide. The watch dial is formed with a semi-circular opening having indicia therearound to represent the tide times. A disc is mounted beneath the watch dial having indicia thereon which are settably aligned with the index marks around the semi-circular opening for setting of the local higher high tide condition. The high tide indicator on the bezel can be aligned with the expected high tide time on the watch dial so that the hour hand will always provide an approximation of the current condition of the tide at any time it is viewed.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: November 3, 1992
    Assignee: Xonix Electronic Watch Enterprise Co., Ltd.
    Inventors: Li Chen, Pyn Maa
  • Patent number: D343127
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: January 11, 1994
    Assignee: Xonix Electronic Watch Enterprise Co., Ltd.
    Inventors: Li Chen, Pyn Maa