Patents by Inventor Weidong Chen

Weidong Chen 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).

  • System for sharing server sessions across multiple clients
    Patent number: 6138120
    Abstract: A session context on a server can be shared between multiple, independent clients by employing many-to-one mapping of sessions to session context. Once a session context is established on the server, the originating client associated with that context can share the context with other clients. The server can provide the client with a certificate identifying the session context. The client, in turn, can pass the certificate to other clients. By initiating a server session with the certificate, the server assigns the pre-existing session context to a new session for a new client. A plurality of clients can thereby interact with a shared session context. This allows the clients to cooperate in a groupware fashion.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: October 24, 2000
    Assignee: Oracle Corporation
    Inventors: Richard Scott Gongwer, Geoff Fred Lyon, Weidong Chen, Catherine M. Lai
  • Polymeric light-emitting device
    Patent number: 5998045
    Abstract: The invention relates to an organic electroluminescent device comprising a light-emitting composition disposed between a first and second electrode. The composition comprises poly(fluorene-co-anthracene).
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: December 7, 1999
    Assignees: International Business Machines Corporation, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Weidong Chen, Gerrit Klaerner, Robert Dennis Miller, John Campbell Scott
  • Method for the preparation of optical fibers
    Patent number: 5911025
    Abstract: Optical fibers having novel refractive index profiles are disclosed. Optical fibers in accordance with the invention are especially useful for application in telecommunication applications such as networks. Processes for the preparation of optical fibers are also disclosed.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: June 8, 1999
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: A. F. Garito, Rui-Fang Shi, Chris Koeppen, Weidong Chen
  • Graded index optical fibers
    Patent number: 5729645
    Abstract: Optical fibers having novel refractive index profiles are disclosed. Optical fibers in accordance with the invention are especially useful for application in telecommunication applications such as networks. Processes for the preparation of optical fibers are also disclosed.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: March 17, 1998
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: A. F. Garito, Rui-Fang Shi, Chris Koeppen, Weidong Chen