Patents by Inventor Ai ZHANG

Ai 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: 20060029658
    Abstract: The invention provides a formulation of one or more antineoplastic drugs encapsulated in liposomes including at least a lipid fraction in addition to the antineoplastic drug, wherein the composition is stable in an aqueous solution at room temperature.
    Type: Application
    Filed: August 3, 2005
    Publication date: February 9, 2006
    Applicant: NeoPharm, Inc.
    Inventors: Jia-Ai Zhang, Sydney Ugwu, Lan Ma, Gopal Anyarambhatla, Imran Ahmad
  • Publication number: 20050249795
    Abstract: The present invention is for novel compositions and methods for treating cancer, particularly, for treating cancer in mammals and more particularly in humans. The therapeutic compositions of the present invention include liposome entrapped gemcitabine in which the liposome can contain any of a variety of neutral or charged liposome-forming compounds including cardiolipin.
    Type: Application
    Filed: February 22, 2005
    Publication date: November 10, 2005
    Applicant: NEOPHARM, INC.
    Inventors: Jia-Ai Zhang, Imran Ahmad
  • Publication number: 20050238706
    Abstract: SN38, camptothecin derivatives are poorly water soluble, highly lipophilic camptothecin derivatives and are very active against a variety of human cancers. Because of their very poor water solubility, SN38 has not been used to treat human patients with cancer due to the inability to administer sufficient quantities of dissolved in a pharmaceutical formulation. This invention overcomes these limitations by teaching novel pharmaceutically acceptable SN38 liposome complex formulation for the direct administration of the formulation to human patients with cancer. The claimed invention also describes the methods to prepare liposomal SN38 complexes and antitumor compositions of liposomal SN38 complexes to allow the administration in sufficient amounts to treat various types of cancer and as antiviral agents. This invention is also directed to injectable sterile solutions, antitumor compositions, liposomes.
    Type: Application
    Filed: February 18, 2005
    Publication date: October 27, 2005
    Applicant: NeoPharm, Inc.
    Inventors: Imran Ahmad, Jia-Ai Zhang
  • Publication number: 20040228911
    Abstract: The present invention is for novel compositions and methods for treating cancer, particularly, for treating cancer in mammals and more particularly in humans. The therapeutic compositions of the present invention include liposome entrapped vinorelbine in which the liposome can contain any of a variety of neutral or charged liposome-forming compounds and cardiolipin. The liposomes of the present invention can be either multilamellar vesicles or unilamellar vesicles, as desired.
    Type: Application
    Filed: February 24, 2004
    Publication date: November 18, 2004
    Applicant: NeoPharm, Inc.
    Inventors: Jia-Ai Zhang, Imran Ahmad
  • Patent number: 6764874
    Abstract: A method of fabricating a nanotube structure which includes providing a substrate, depositing a supporting layer and an active catalyst film layer onto the substrate, and forming at least one nanotube on the surface of the substrate using a reaction chamber having a growth temperature of less than 850° C.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: July 20, 2004
    Assignee: Motorola, Inc.
    Inventors: Ruth Yu-Ai Zhang, Islamshah Amlani, Jeffrey H. Baker
  • Patent number: 6689674
    Abstract: A method of fabricating a nanotube structure which includes providing a substrate, providing a mask region positioned on the substrate, patterning and etching through the mask region to form at least one trench, depositing a conductive material layer within the at least one trench, depositing a solvent based nanoparticle catalyst onto the conductive material layer within the at least one trench, removing the mask region and subsequent layers grown thereon using a lift-off process, and forming at least one nanotube electrically connected to the conductive material layer using chemical vapor deposition with a methane precursor.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: February 10, 2004
    Assignee: Motorola, Inc.
    Inventors: Ruth Yu-ai Zhang, Raymond K. Tsui, John Tresek, Jr., Adam M. Rawlett
  • Publication number: 20030215492
    Abstract: The present invention is for novel compositions and methods for treating diseases caused by cellular proliferation, particularly, for treating cancer in mammals and more particularly in humans. The therapeutic compositions of the present invention include SN-38 lipid complexes in which the complexes can contain any of a variety of neutral or charged lipids and, desirably, cardiolipin. The compositions are capable of efficiently incorporating SN-38 into complexes and are capable of solubilizing relatively high concentrations of SN-38.
    Type: Application
    Filed: April 28, 2003
    Publication date: November 20, 2003
    Applicant: NeoPharm, Inc.
    Inventors: Imran Ahmad, Jia-Ai Zhang, Aquilur Rahman
  • Publication number: 20030211322
    Abstract: A method of fabricating a nanotube structure which includes providing a substrate, providing a mask region positioned on the substrate, patterning and etching through the mask region to form at least one trench, depositing a conductive material layer within the at least one trench, depositing a solvent based nanoparticle catalyst onto the conductive material layer within the at least one trench, removing the mask region and subsequent layers grown thereon using a lift-off process, and forming at least one nanotube electrically connected to the conductive material layer using chemical vapor deposition with a methane precursor.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 13, 2003
    Inventors: Ruth Yu-ai Zhang, Raymond K. Tsui, John Tresek, Adam M. Rawlett
  • Patent number: 5871751
    Abstract: A vaccine and method for treating fish susceptible to infection by Renibacterium salmoninarum is described. The vaccine comprises killed microorganisms that lack intact cell-surface-associated protein p57. The vaccine can be used in combination with additional materials, such as, without limitation, adjuvants, plasticizers, pharmaceutical excipients, antigens other than the cells lacking intact cell-surface-associated protein p57, diluents, carriers, binders, lubricants, glidants, aesthetic compounds, such as flavoring and coloring agents, and combinations thereof. The vaccine may be enteric-coated for oral delivery. The enteric coating generally comprises a polymer coating that is impervious to dissolution and/or degradation in the stomach, but is dissolved upon passing to the higher pH environments of the intestine. A preferred embodiment of the vaccine is made using spherical sugar microspheres.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: February 16, 1999
    Assignee: The State of Oregon Acting By and Through the State Board of Higher Education on Behalf of Oregon State University
    Inventors: John Mark Christensen, Steve Kaattari, Jon D. Piganelli, Gregory Wiens, Jia Ai Zhang