Patents by Inventor Fei Zhang

Fei Zhang 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).

  • Patent number: 7608688
    Abstract: The present invention relates to HIV-1 envelope proteins from a donor with non-progressive HIV-1 infection whose serum contains broadly cross-reactive, primary virus neutralizing antibody. The invention also relates to isolated or purified proteins and protein fragments that share certain amino acids at particular positions with the foregoing HIV-1 proteins.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: October 27, 2009
    Assignee: The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc.
    Inventors: Gerald V. Quinnan, Jr., Peng Fei Zhang
  • Publication number: 20090124601
    Abstract: Tartaric acid salts of (3R)-4-[(3R)-3-amino-4-(2,4,5-trifluorophenyl) butanoyl]hexahydro-3-(2,2,2-trifluoroethyl)-2H-1,4-diazepin-2-one are potent inhibitors of dipeptidyl peptidase-IV and are useful for the prevention and/or treatment of non-insulin dependent diabetes mellitus, also referred to as Type 2 diabetes. The invention also relates to crystalline anhydrate forms of the tartaric acid salts as well as a process for their preparation, pharmaceutical compositions containing these novel forms and methods of use for the treatment of Type 2 diabetes.
    Type: Application
    Filed: March 24, 2006
    Publication date: May 14, 2009
    Inventors: Zhiguo J. Song, Fei Zhang, Rebecca Leigh Shultz
  • Publication number: 20080319884
    Abstract: The present invention provides a charging system and charging method. An online charging system and an offline charging system are interconnected via a shared data center to make up a dual-engine structure, which is able to implement online charging, offline charging, account sharing, switching between prepaid and postpaid modes, and binding of voice and data services. With the invention, an operator can possess more flexible charging and control capabilities, lower the cost of arrearage, and have stronger competitiveness.
    Type: Application
    Filed: August 27, 2008
    Publication date: December 25, 2008
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhiquan YI, Wei ZHANG, Fei ZHANG
  • Patent number: 7139828
    Abstract: A system is disclosed that allows an entity outside of a private network to initiate communication with an entity inside the private network. The entity inside of the private network maintains a persistent connection with an agent. In one embodiment, communications that are intended for the entity inside the private network are sent to the agent. The agent then forwards the communications to the entity inside the private via the persistent connection.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: November 21, 2006
    Assignee: IP Dynamics, Inc.
    Inventors: Hasan S. Alkhatib, Yun Fei Zhang, Fouad A. Tobagi, Farid F. Elwailly
  • Patent number: 7090848
    Abstract: The present invention relates to HIV-1 envelope proteins from a donor with non-progressive HIV-1 infection whose serum contains broadly cross-reactive, primary virus neutralizing antibody. The invention also relates to isolated or purified proteins and protein fragments that share certain amino acids at particular positions with the foregoing HIV-1 proteins.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: August 15, 2006
    Assignee: Henry M. Jackson Foundation for the Advancement of Military Medicine
    Inventors: Gerald V. Quinnan, Jr., Peng Fei Zhang
  • Patent number: 7069755
    Abstract: A deadbolt lock has a housing and a deadbolt latch mounted to the housing. The deadbolt latch has a bolt that is moveable between an extended, locked position, and a retracted, unlocked position. An outside thumb-turn rotatably mounted to the housing. A motor-driven axial clutch is connected between the deadbolt latch and the outside thumb-turn. The bolt is movable by the thumb-turn only when the clutch is engaged. A microcomputer disposed within the housing. An electric motor is connected between the microcomputer and the clutch for engaging and disengaging the clutch. An electronic touch-key reader is disposed in the housing. The electronic touch-key reader is electronically connected to the microcomputer and is capable of reading a digital security code from an electronic touch-key applied thereto. The microprocessor actuates the electric motor to engage the clutch only when an authorized digital security code is read by the electronic touch-key reader.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: July 4, 2006
    Inventors: William B. Lies, Richard W. Johns, Jun-Fei Zhang, Jiandong Ke
  • Publication number: 20050144994
    Abstract: A deadbolt lock has a housing and a deadbolt latch mounted to the housing. The deadbolt latch has a bolt that is moveable between an extended, locked position, and a retracted, unlocked position. An outside thumb-turn rotatably mounted to the housing. A motor-driven axial clutch is connected between the deadbolt latch and the outside thumb-turn. The bolt is movable by the thumb-turn only when the clutch is engaged. A microcomputer disposed within the housing. An electric motor is connected between the microcomputer and the clutch for engaging and disengaging the clutch. An electronic touch-key reader is disposed in the housing. The electronic touch-key reader is electronically connected to the microcomputer and is capable of reading a digital security code from an electronic touch-key applied thereto. The microprocessor actuates the electric motor to engage the clutch only when an authorized digital security code is read by the electronic touch-key reader.
    Type: Application
    Filed: March 3, 2005
    Publication date: July 7, 2005
    Inventors: William Lies, Richard Johns, Jun-Fei Zhang, Jiandong Ke
  • Patent number: 6744314
    Abstract: A novel linearization apparatus for reducing power amplifier distortion does not require delay lines. The apparatus includes a power amplifier and an error generator. The signals provided by the error generator (error signal) and the power amplifier are combined to subtract out the distortion introduced by the power amplifier. The error generator includes two auxiliary amplifiers, wherein one of the auxiliary amplifiers is operated in it saturated region and the other is operated in its non-saturated region. The power amplifier and the two auxiliary amplifiers have the same distortion characteristics and receive the same input signal. The auxiliary amplifier operating in its saturated region introduces distortion and the auxiliary amplifier operating in its non-saturated region does not introduce distortion. The two signals provided by the auxiliary amplifiers are combined to produce an error signal having a distortion component that is an approximate replica of the power amplifier distortion.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: June 1, 2004
    Assignee: Harris Corporation
    Inventors: Guang Fei Zhang, Xing Wang, Fabio Concilio, Tjo San Jao
  • Publication number: 20040044778
    Abstract: A system is disclosed that allows an entity outside of a private network to initiate communication with an entity inside the private network. The entity inside of the private network maintains a persistent connection with an agent. In one embodiment, communications that are intended for the entity inside the private network are sent to the agent. The agent then forwards the communications to the entity inside the private via the persistent connection.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventors: Hasan S. Alkhatib, Yun Fei Zhang, Fouad A. Tobagi, Farid F. Elwailly
  • Publication number: 20030234687
    Abstract: A novel linearization apparatus for reducing power amplifier distortion does not require delay lines. The apparatus includes a power amplifier and an error generator. The signals provided by the error generator (error signal) and the power amplifier are combined to subtract out the distortion introduced by the power amplifier. The error generator includes two auxiliary amplifiers, wherein one of the auxiliary amplifiers is operated in it saturated region and the other is operated in its non-saturated region. The power amplifier and the two auxiliary amplifiers have the same distortion characteristics and receive the same input signal. The auxiliary amplifier operating in its saturated region introduces distortion and the auxiliary amplifier operating in its non-saturated region does not introduce distortion. The two signals provided by the auxiliary amplifiers are combined to produce an error signal having a distortion component that is an approximate replica of the power amplifier distortion.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 25, 2003
    Inventors: Guang Fei Zhang, Xing Wang, Fabio Concilio, Tjo San Jao
  • Patent number: 6284623
    Abstract: A method of fabricating semiconductor devices, such as conductors, fuses, capacitors, diodes, transistors, and the like, includes forming or obtaining a semiconductor wafer having a substrate material, an oxide layer, and a nitride layer. Mesas (the edges of which include active regions) are then formed by etching trenches (gaps) into the substrate material through the nitride and oxide layers. In accordance with one aspect of the present invention, the nitride layer is then pulled-back or retracted from the edges of the active regions thus exposing the corners of the active regions. The gaps and the edges of the active regions are then lined with a layer of oxide which rounds the corners of the active regions. The gaps are filled with another layer of oxide, and the semiconductor wafer is then planarized. Optionally, the edges of the active regions are then implanted with dopant.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: September 4, 2001
    Inventors: Peng-Fei Zhang, Richard A. Mann