Patents by Inventor Alfred Wah-Hang Yuen

Alfred Wah-Hang Yuen 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).

  • Tablet grinding device
    Patent number: 7703712
    Abstract: A device for grinding tablets includes a body, an electric motor housed within the body, a power source connected to the electric motor via a switch, a grinder driven to rotate by the electric motor, a tablet chute to the grinder, and a particle bin attached to or formed integrally with the body for receiving particles from the grinder.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: April 27, 2010
    Inventors: Chun-Chun Chiu, Alfred Wah-Hang Yuen
  • Tablet grinding device
    Publication number: 20080210791
    Abstract: A device for grinding tablets includes a body, an electric motor housed within the body, a power source connected to the electric motor via a switch, a grinder driven to rotate by the electric motor, a tablet chute to the grinder, and a particle bin attached to or formed integrally with the body for receiving particles from the grinder.
    Type: Application
    Filed: June 19, 2007
    Publication date: September 4, 2008
    Inventors: Chun-Chun Chiu, Alfred Wah-Hang Yuen