Patents by Inventor Luis del Castillo

Luis del Castillo 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).

  • Audio equipment
    Patent number: D438858
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: March 13, 2001
    Assignee: Security Associates International, Inc.
    Inventor: Luis del Castillo