Patents by Inventor Wen Ming Xu

Wen Ming Xu 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).

  • Assembling and disassembling device for ring binders
    Patent number: 5924811
    Abstract: A fastener apparatus for releasably fastening a sheet retaining apparatus to a cover member includes a plate member secured to the cover member and having an aperture therein. A pin member is reciprocally mounted to the sheet retaining apparatus, with a portion of the pin member being selectively positionable in the aperture to secure the sheet retaining apparatus to the cover member. Thus, the sheet retaining apparatus is readily assemblable and disassemblable from the cover member repeatedly by a user. Thus, the sheet retaining apparatus and the cover member may be shipped in an unassembled condition in a very compact package for later assembly by the consumer.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: July 20, 1999
    Assignee: World Wide Stationery Mfg. Co., Ltd.
    Inventors: Chun Yuen To, Chun On William To, Weng Io Ng, Kung Cheng, Wen-Ming Xu
  • Housing for a ring binder mechanism
    Patent number: D459392
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: June 25, 2002
    Assignee: World Wide Stationery Manufacturing Company Limited
    Inventor: Wen Ming Xu