Patents by Inventor Xiao Zhang

Xiao 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).

  • Publication number: 20030185800
    Abstract: The invention concerns a novel human interferon-&egr;, originally designated PRO655, and its variants and derivatives. The novel interferon is related to but distinct from members of the IFN-&agr; family and from IFNs-&bgr; and -&ggr;. Nucleic acid encoding the novel polypeptide, and methods and means for their recombinant production and use are also included.
    Type: Application
    Filed: April 17, 2003
    Publication date: October 2, 2003
    Applicant: Genentech, Inc.
    Inventors: Jian Chen, Paul Godowski, William I. Wood, Dong-Xiao Zhang
  • Patent number: 6624002
    Abstract: In accordance with the present invention, nanometer-scale reversible electronic switches are provided that can be assembled to make cross-bar circuits that provide memory, logic, and communications functions. The electronic switches, or crossed-wire devices, comprise a pair of crossed wires that form a junction where one wire crosses another at an angle other than zero degrees and at least one connector species connecting the pair of crossed wires in the junction. The junction has a functional dimension in nanometers, wherein at least one connector species and the pair of crossed wires forms an electrochemical cell. The connector species comprises a bistable molecule having a general formula given by The bistable molecules evidence high switching speed. Such molecules are essentially stable against switching due to thermal fluctuations.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: September 23, 2003
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Alexandre M. Bratkovski, Pavel Kornilovich, R. Stanley Williams, Xiao-An Zhang
  • Patent number: 6569420
    Abstract: The invention concerns a novel human interferon-&egr;, originally designated PRO655, and its variants and derivatives. The novel interferon is related to but distinct from members of the IFN-&agr; family and from IFNs-&bgr; and -&ggr;. Nucleic acid encoding the novel polypeptide, and methods and means for their recombinant production are also included.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: May 27, 2003
    Assignee: Genentech, Inc.
    Inventors: Jian Chen, Paul Godowski, William I. Wood, Dong-Xiao Zhang
  • Publication number: 20030089920
    Abstract: In accordance with the present invention, nanometer-scale reversible electronic switches are provided that can be assembled to make cross-bar circuits that provide memory, logic, and communications functions. The electronic switches, or crossed-wire devices, comprise a pair of crossed wires that form a junction where one wire crosses another at an angle other than zero degrees and at least one connector species connecting the pair of crossed wires in the junction. The junction has a functional dimension in nanometers, wherein at least one connector species and the pair of crossed wires forms an electrochemical cell.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 15, 2003
    Inventors: Alexandre M. Bratkovski, Pavel Kornilovich, R. Stanley Williams, Xiao-An Zhang
  • Publication number: 20030081469
    Abstract: An electrochromic molecular colorant and a plurality of uses as an erasably writeable medium. Multitudinous types of substrates, such as paper, are adaptable for receiving a coating of the colorant. Electrical fringe field or through fields are used to transform targeted pixel molecules between a first, high color state and transparent state, providing information content having resolution and viewability at least equal to hard copy document print. The scope of the invention includes both the liquid coating and the combination of coating on substrate.
    Type: Application
    Filed: October 3, 2002
    Publication date: May 1, 2003
    Inventors: Kent D. Vincent, Xiao-An Zhang, R. Stanley Williams
  • Patent number: 6556470
    Abstract: An electrochromic molecular colorant and a plurality of uses as an erasably writeable medium. Multitudinous types of substrates, such as paper, are adaptable for receiving a coating of the colorant. Electrical fringe field or through fields are used to transform targeted pixel molecules between a first, high color state and transparent state, providing information content having resolution and viewability at least equal to hard copy document print. The scope of the invention includes both the liquid coating and the combination of coating on substrate.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: April 29, 2003
    Assignee: Hewlett-Packard Company
    Inventors: Kent D. Vincent, Xiao-An Zhang, R. Stanley Williams
  • Publication number: 20030071780
    Abstract: Method and apparatus for document content publishing, distribution, and display, including a method of doing business. An electronic display includes at least one reusable imaging stratum forming a pixel array of a bi-modal molecular colorant. Preferably, the molecules have bistable orientations. The imaging stratum having a viewing surface and a back surface. Adjacent said back surface is a background stratum. An addressing device is mounted for selectively switching colorant molecules of the imaging stratum between a transparent orientation and a color-exhibiting orientation. The present invention is adaptable to reflective light, back lit, and projection implementations.
    Type: Application
    Filed: October 16, 2001
    Publication date: April 17, 2003
    Inventors: Kent D. Vincent, R. Stanley Williams, Xiao-An Zhang
  • Publication number: 20030071800
    Abstract: An electronic book, having a single screen, employs an electric field addressable, rewritable, colorant, preferably a bistable molecular colorant, for providing printed pages sequentially to a reader. The electronic book includes the rewritable screen coupled to an extraction-retraction device, an electrode array printer, a sheet position detector, and associated circuitry to download, store, sequence, and print images on the screen. Methods associated with document distribution are another aspect of the invention.
    Type: Application
    Filed: October 16, 2001
    Publication date: April 17, 2003
    Inventors: Kent D. Vincent, R. Stanley Williams, Xiao-An Zhang
  • Publication number: 20030072200
    Abstract: An electrochromic molecular colorant and a plurality of uses as an erasably writeable medium. Multitudinous types of substrates, such as paper, are adaptable for receiving a coating of the colorant. Electrical fringe field or through fields are used to transform targeted pixel molecules between a first, high color state and transparent state, providing information content having resolution and viewability at least equal to hard copy document print. The scope of the invention includes both the liquid coating and the combination of coating on substrate.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 17, 2003
    Inventors: Kent D. Vincent, Xiao-An Zhang, R. Stanley Williams
  • Publication number: 20030058713
    Abstract: An electrochromic molecular colorant and a plurality of uses as an erasably writeable medium. Multitudinous types of substrates, such as paper, are adaptable for receiving a coating of the colorant. Electrical fringe field or through fields are used to transform targeted pixel molecules between a first, high color state and transparent state, providing information content having resolution and viewability at least equal to hard copy document print. The scope of the invention includes both the liquid coating and the combination of coating on substrate.
    Type: Application
    Filed: October 3, 2002
    Publication date: March 27, 2003
    Inventors: Kent D. Vincent, Xiao-An Zhang, R. Stanley Williams
  • Publication number: 20030053355
    Abstract: An electrochromic molecular colorant and a plurality of uses as an erasably writeable medium. Multitudinous types of substrates, such as paper, are adaptable for receiving a coating of the colorant. Electrical fringe field or through fields are used to transform targeted pixel molecules between a first, high color state and transparent state, providing information content having resolution and viewability at least equal to hard copy document print. The scope of the invention includes both the liquid coating and the combination of coating on substrate.
    Type: Application
    Filed: October 3, 2002
    Publication date: March 20, 2003
    Inventors: Kent D. Vincent, Xiao-An Zhang, R. Stanley Williams
  • Publication number: 20030043655
    Abstract: An electrochromic molecular colorant and a plurality of uses as an erasably writeable medium. Multitudinous types of substrates, such as paper, are adaptable for receiving a coating of the colorant. Electrical fringe field or through fields are used to transform targeted pixel molecules between a first, high color state and transparent state, providing information content having resolution and viewability at least equal to hard copy document print. The scope of the invention includes both the liquid coating and the combination of coating on substrate.
    Type: Application
    Filed: October 3, 2002
    Publication date: March 6, 2003
    Inventors: Kent D. Vincent, Xiao-An Zhang, R. Stanley Williams
  • Publication number: 20030036166
    Abstract: The invention concerns a novel neuregulin related ligand (NRG3) including fragments and variants thereof, as new members of the neuregulin family of compounds. The invention also concerns methods and means for producing NRG3. The native polypeptides of the invention are characterized by containing an extracellular domain including an EGF-like domain, a transmembrane domain and a cytoplasmic domain. Isolated nucleotide sequences encoding such polypeptides, expression vectors containing the nucleotide sequences, recombinant host cells transformed with the vectors, and methods for the recombinant production for the novel NRG3s are also within the scope of the invention.
    Type: Application
    Filed: August 9, 2002
    Publication date: February 20, 2003
    Applicant: Genentech, Inc.
    Inventors: Paul J. Godowski, Melanie Rose Mark, Dong Xiao Zhang
  • Patent number: 6512119
    Abstract: In accordance with the present invention, nanometer-scale reversible electronic switches are provided that can be assembled to make cross-bar circuits that provide memory, logic, and communications functions. The electronic switches, or crossed-wire devices, comprise a pair of crossed wires that form a junction where one wire crosses another at an angle other than zero degrees and at least one connector species connecting the pair of crossed wires in the junction. The junction has a functional dimension in nanometers, wherein at least one connector species and the pair of crossed wires forms an electrochemical cell. The connector species comprises a bistable molecule having a general formula given by The bistable molecules evidence high switching speed. Such molecules are essentially stable against switching due to thermal fluctuations.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: January 28, 2003
    Assignee: Hewlett-Packard Company
    Inventors: Alexandre M. Bratkovski, Pavel Kornilovich, R. Stanley Williams, Xiao-An Zhang
  • Publication number: 20030012484
    Abstract: A molecular system is provided for electric field activated switches, such as optical switches. The molecular system has an electric field induced band gap change that occurs via a molecular conformation change, based on a rotor/stator construction of the molecular system, involving a rotating portion (rotor) connected between two stationary portions (stators). Nanometer-scale reversible optical switches are thus provided that can be assembled easily to make a variety of optical devices, including optical displays.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 16, 2003
    Inventors: Xiao-An Zhang, R. Stanley Williams, Kent D. Vincent
  • Publication number: 20020176276
    Abstract: Molecular systems are provided for electric field activated switches, such as a crossed-wire device or a pair of electrodes to which the molecular system is linked by linking moieties. The crossed-wire device comprises a pair of crossed wires that form a junction where one wire crosses another at an angle other than zero degrees and at least one connector species connecting the pair of crossed wires in the junction. The connector species comprises the molecular system, which has an electric field induced band gap change, and thus a change in its electrical conductivity, that occurs via one of the following mechanisms: (1) molecular conformation change; (2) change of extended conjugation via chemical bonding change to change the band gap; or (3) molecular folding or stretching. Nanometer-scale reversible electronic switches are thus provided that can be assembled easily to make cross-bar circuits, which provide memory, logic, and communication functions.
    Type: Application
    Filed: March 29, 2001
    Publication date: November 28, 2002
    Inventors: Xiao-An Zhang, R. Stanley Williams, Kent D. Vincent
  • Publication number: 20020172660
    Abstract: The invention concerns a novel human interferon-&egr;, originally designated PRO655, and its variants and derivatives. The novel interferon is related to but distinct from members of the IFN-&agr; family and from IFNs-&bgr; and -&ggr;. Nucleic acid encoding the novel polypeptide, and methods and means for their recombinant production are also included.
    Type: Application
    Filed: July 30, 2001
    Publication date: November 21, 2002
    Applicant: Genentech, Inc.
    Inventors: Jian Chen, Paul Godowski, William I. Wood, Dong-Xiao Zhang
  • Publication number: 20020164680
    Abstract: The invention concerns a novel neuregulin related ligand (NRG3) including fragments and variants thereof, as new members of the neuregulin family of compounds. The invention also concerns methods and means for producing NRG3. The native polypeptides of the invention are characterized by containing an extracellular domain including an EGF-like domain, a transmembrane domain and a cytoplasmic domain. Isolated nucleotide sequences encoding such polypeptides, expression vectors containing the nucleotide sequences, recombinant host cells transformed with the vectors, and methods for the recombinant production for the novel NRG3s are also within the scope of the invention.
    Type: Application
    Filed: June 8, 2001
    Publication date: November 7, 2002
    Applicant: Genentech, Inc.
    Inventors: Paul J. Godowski, Melanie Rose Mark, Dong-Xiao Zhang
  • Publication number: 20020161200
    Abstract: The invention concerns a novel neuregulin related ligand (NRG3) including fragments and variants thereof, as new members of the neuregulin family of compounds. The invention also concerns methods and means for producing NRG3. The native polypeptides of the invention are characterized by containing an extracellular domain including an EGF-like domain, a transmembrane domain and a cytoplasmic domain. Isolated nucleotide sequences encoding such polypeptides, expression vectors containing the nucleotide sequences, recombinant host cells transformed with the vectors, and methods for the recombinant production for the novel NRG3s are also within the scope of the invention.
    Type: Application
    Filed: April 29, 2002
    Publication date: October 31, 2002
    Applicant: Genentech, Inc.
    Inventors: Paul J. Godowski, Melanie Rose Mark, Dong Xiao Zhang
  • Publication number: 20020130317
    Abstract: In accordance with the present invention, nanometer-scale reversible electronic switches are provided that can be assembled to make cross-bar circuits that provide memory, logic, and communications functions. The electronic switches, or crossed-wire devices, comprise a pair of crossed wires that form a junction where one wire crosses another at an angle other than zero degrees and at least one connector species connecting the pair of crossed wires in the junction. The junction has a functional dimension in nanometers, wherein at least one connector species and the pair of crossed wires forms an electrochemical cell.
    Type: Application
    Filed: January 16, 2002
    Publication date: September 19, 2002
    Inventors: Alexandre M. Bratkovski, Pavel Kornilovich, R. Stanley Williams, Xiao-An Zhang