Patents by Inventor Denis Fan

Denis Fan 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).

  • Outlet port protective device for stocking unit
    Patent number: 6169490
    Abstract: An installation for protecting the outlet port of a stocking unit. The installation includes an outlet port having four wafer boat supporters, two wafer boat sensors and a set of light-intercepting sensors. Through the light-intercepting sensors and the wafer boat sensors, any improperly placed wafer boat or items inside the outlet port area can be detected. Hence, collisions between a wafer boat forwarded by the stocking unit and any wafer boat or items left inside the outlet is prevented.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: January 2, 2001
    Assignee: United Microelectronics Corp.
    Inventor: Denis Fan