Patents by Inventor Henry Cho

Henry Cho 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).

  • Sanitary, liquid resistant, disposable, adhesive sided, folded placemat
    Patent number: 6783831
    Abstract: This place is made of cellulosic material with a top and bottom planar surface and a peripheral edge. Approximately 75% of the bottom surface is covered with adhesive to keep small children from pulling the placemat off the surface it is adhering The top surface is liquid-resistant to keep it from functioning due to tears in the paper. The placemat is uniquely folded to ensure the operational side remains unexposed to the elements and to avoid using release tape for the adhesive. The placemat is also disposable making it convenient to use. The placemat is folded to be an individual package making it convenient to carry and distribute. The placemat is easy to place onto a surface and remove. The placemat is essential to keep young children from eating off of unsanitary surfaces and moving existing placemats with ease.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: August 31, 2004
    Inventor: Henry Cho
  • Inverter with a charging capability
    Patent number: D558142
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: December 25, 2007
    Assignee: DHC Specialty Corp.
    Inventor: Henry Cho