Patents by Inventor Yuen Po Man

Yuen Po Man 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).

  • Elapsed time clock
    Patent number: 8611192
    Abstract: The present invention provides a clock having a body with a first clock face and a second clock face. The clock includes a start time assembly at least partially positioned within the body and corresponding with the first clock face, an end time assembly at least partially positioned within the body and corresponding with the second clock face, and an elapsed time assembly in mechanical communication with both the start time assembly and the end time assembly.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: December 17, 2013
    Assignee: Learning Resources, Inc.
    Inventors: Nancy Balter, Yuen Po Man
  • ELAPSED TIME CLOCK
    Publication number: 20120307599
    Abstract: The present invention provides a clock having a body with a first clock face and a second clock face. The clock includes a start time assembly at least partially positioned within the body and corresponding with the first clock face, an end time assembly at least partially positioned within the body and corresponding with the second clock face, and an elapsed time assembly in mechanical communication with both the start time assembly and the end time assembly.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 6, 2012
    Inventors: Nancy Balter, Yuen Po Man
  • Digital and analog teaching clock
    Patent number: 5851118
    Abstract: A teaching clock comprising an analog clock face having numeric indicia of hour and minute disposed about its periphery, an hour hand and a minute hand pivotally mounted and substantially centrally disposed proximate to the analog clock face, a digital time display disposed adjacent to the analog clock face, and a gear assembly responsive to movement of the minute hand for conforming a time displayed by the digital time display to a time indicated by the hour hand and the minute hand.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: December 22, 1998
    Assignee: Learning Resources, Inc.
    Inventors: Richard M. Woldenberg, Yuen Po Man