Patents by Inventor Tsao-Hui Chen

Tsao-Hui Chen 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).

  • Hat device
    Patent number: 6202218
    Abstract: A hat device has a main body, and a fixed peak disposed on a front portion of the main body. An extensible visor has two lateral elastic plates, two grooves, and a blocking flange. The fixed peak has a slot and a periphery flange. The extensible visor is inserted in the slot of the fixed peak.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: March 20, 2001
    Inventor: Tsao-Hui Chen
  • Hat with extensible visor
    Patent number: 5839125
    Abstract: A hat has a main body, a fixed peak disposed on a front portion of the main body, and an extensible visor engaged with the fixed peak. At least an insertion block is disposed on the extensible visor. The insertion block has two opposite lateral teeth. At least a pair of L-shaped racks are disposed on the fixed peak. Each L-shaped rack has a front block and a plurality of serrations. Each lateral teeth engage with the respective serrations.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: November 24, 1998
    Inventor: Tsao-Hui Chen