Patents by Inventor Ben H. Ma

Ben H. Ma 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: 6109996
    Abstract: A Coin Bank Having Twistable Segments is disclosed. Also disclosed is a bank that has a lockable lid and a plurality of twistable segments, such that when the segments are aligned in the proper rotational position in relation to the throat and base of the bank, then the lid will be unlocked. The bank includes a lid that is hinged and further is defined by a slot formed therethrough for inserting thin objects, such as coins, through the slot and into the bank. The bank also includes a coin detector for detecting when a coin is placed into the slot, and responsively playing sounds perceptible to the human ear. Furthermore the segments are formed from circular rings having artwork or other indexing markings on their outer surface, such that when the artwork or indexing markings are aligned, then the segments are aligned with the non-rotating base, and the lid can be unlocked.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: August 29, 2000
    Inventors: Ben H. Ma, Paul Wang