Patents by Inventor Allen Y. L. Wang

Allen Y. L. Wang 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).

  • Air freshener
    Patent number: D347276
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: May 24, 1994
    Assignee: Eutech Enterprise Co., Ltd.
    Inventor: Allen Y. L. Wang
  • Air freshener
    Patent number: D349335
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: August 2, 1994
    Assignee: Eutech Enterprise Ltd.
    Inventor: Allen Y. L. Wang