Patents by Inventor Darin Chien

Darin Chien 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).

  • Steal and burglar preventive purse
    Patent number: 4885570
    Abstract: A purse includes a wavy wire fully distributed on a purse casing and an alarm formed in the casing whereby upon a cutting or breaking of the wire by a thief or pickpocket, the disconnection of wire will actuate the alarm sounding for preventing its robbing, and also includes an emergency switch which is operated by pulling a handle or belt of the purse to disconnect the wire for sounding the alarm.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: December 5, 1989
    Inventor: Darin Chien