Patents by Inventor Cheng-Lang Chang

Cheng-Lang Chang 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).

  • Faucet
    Patent number: D461526
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: August 13, 2002
    Assignee: Jing Yudh Industrial Co., Ltd.
    Inventor: Cheng-Lang Chang
  • Faucet
    Patent number: D461528
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: August 13, 2002
    Assignee: Jing Yudh Industrial Co., Ltd.
    Inventor: Cheng-Lang Chang
  • Faucet
    Patent number: D465555
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: November 12, 2002
    Assignee: Jing Yudh Industrial Co., Ltd.
    Inventor: Cheng-Lang Chang
  • Faucet
    Patent number: D465830
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: November 19, 2002
    Assignee: Jing Yudh Industrial Co., Ltd.
    Inventor: Cheng-Lang Chang
  • Hot/cold water mixing faucet
    Patent number: D489433
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: May 4, 2004
    Assignee: Jing Yudh Industrial Co., Ltd.
    Inventor: Cheng-Lang Chang
  • Hot/cold water mixing faucet
    Patent number: D489796
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: May 11, 2004
    Assignee: Jing Yudh Industrial Co., Ltd.
    Inventor: Cheng-Lang Chang