Patents by Inventor Yuen P. Leung

Yuen P. Leung 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).

  • Kit for producing antistatic and fabric softening article
    Patent number: 4488640
    Abstract: A kit is produced which comprises an active agent, such as a fabric softener and antistatic composition, a reusable substrate capable of being coated with or impregnated with the active agent and means for coating or impregnating said substrate both initially and for re-coating or re-impregnating said substrate with the active agent after each use or after multiple uses.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: December 18, 1984
    Assignee: Beecham Inc.
    Inventor: Yuen P. Leung