Patents by Inventor Chien W. Ching

Chien W. Ching 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).

  • Adjustable lamp
    Patent number: D327134
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: June 16, 1992
    Inventor: Chien W. Ching