Patents by Inventor Dujie Qin

Dujie Qin 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).

  • Polymer conjugate enhanced bioassays
    Patent number: 8563329
    Abstract: Modified branched polymers are combined with bioactive agents which are one member of a binding pair for use in an assay.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: October 22, 2013
    Assignee: ANP Technologies, Inc.
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Asymmetrically branched polymer conjugates and microarray assays
    Patent number: 8501399
    Abstract: A method of detection comprising a conjugate of a randomly and asymmetrically branched dendritic polymer.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: August 6, 2013
    Assignee: ANP Technologies, Inc.
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Immunogenicity Assay
    Publication number: 20120220051
    Abstract: Assays for detecting antibodies to pharmaceutical preparations, food allergens and environmental allergens are described.
    Type: Application
    Filed: May 7, 2010
    Publication date: August 30, 2012
    Applicant: ANP TECHNOLOGIES, INC.
    Inventors: Ray Yin, Jing Pang, Yli Remo Vallejo, JR., Thomas Small, Dujie Qin, De Chen
  • Asymmetrically branched polymer conjugates and microarray assays
    Publication number: 20110065090
    Abstract: A method of detection comprising a conjugate of a randomly and asymmetrically branched dendritic polymer.
    Type: Application
    Filed: July 12, 2010
    Publication date: March 17, 2011
    Applicant: ANP TECHNOLOGIES, INC.
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Asymmetrically branched polymer conjugates and microarray assays
    Publication number: 20110053175
    Abstract: A composition comprising a conjugate of a randomly and asymmetrically branched dendritic polymer.
    Type: Application
    Filed: July 11, 2010
    Publication date: March 3, 2011
    Applicant: ANP TECHNOLOGIES, INC.
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Asymmetrically branched polymer conjugates and microarray assays
    Publication number: 20110053243
    Abstract: A conjugate of a randomly and asymmetrically branched dendritic polymer and a member of a binding pair.
    Type: Application
    Filed: July 11, 2010
    Publication date: March 3, 2011
    Applicant: ANP TECHNOLOGIES, INC.
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Asymmetrically branched polymer conjugates and microarray assays
    Patent number: 7754500
    Abstract: Asymmetrically branched polymers are combined with bioactive agents for a variety of purposes including drug delivery and conjugation to one member of a binding pair for use in an assay.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: July 13, 2010
    Assignee: ANP Technologies, Inc.
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Polymer Conjugate Enhanced Bioassays
    Publication number: 20080200562
    Abstract: Modified branched polymers are combined with bioactive agents which are one member of a binding pair for use in an assay.
    Type: Application
    Filed: May 2, 2006
    Publication date: August 21, 2008
    Applicant: ANP Technologies
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Symmetrically Branched Polymer Conjugates and Microarray Assays
    Publication number: 20080114077
    Abstract: Modified symmetrically branched polymers are combined with bioactive agents for a variety of purposes including drug delivery and conjugation to one member of a binding pair for use in an assay.
    Type: Application
    Filed: September 25, 2007
    Publication date: May 15, 2008
    Applicant: ANP Technologies, Inc.
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Asymmetrically branched polymer conjugates and microarray assays
    Publication number: 20060041058
    Abstract: Asymmetrically branched polymers are combined with bioactive agents for a variety of purposes including drug delivery and conjugation to one member of a binding pair for use in an assay.
    Type: Application
    Filed: November 22, 2004
    Publication date: February 23, 2006
    Applicant: ANP Technologies, Inc.
    Inventors: Ray Yin, Dujie Qin, Jing Pan
  • Enhancing protein activity through nanoencapsulation
    Patent number: 6716450
    Abstract: Nanocapsules useful for encapsulating bioactive molecules such as proteins are disclosed. These nanocapsules are comprised of branched or hyperbranched polymers and copolymers and have a core-shell structure forming a pocket volume appropriate for complexing and retaining enzymes and other bioactive molecules. The nanoencapsulated bioactive molecule is stable in extreme temperatures and pH, soluble in aqueous or organic solvents, and can be lyophilized to a dry powder for long-term storage without loss of enzyme activity.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: April 6, 2004
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ray Yin, Tu-Chen Cheng, H. Dupont Durst, Dujie Qin
  • Convergent self-branching polymerization
    Patent number: 6632889
    Abstract: A method of forming a branched polymer includes forming a plurality of growing linear polymer chains by polymerizing a monomer which is protected against branching and which forms a reactive end group which is in a first condition which is one of electrophilic or nucleophilic, exposing the growing linear polymer chains to a chain transfer agent to cause the reactive end group of at least a first growing linear polymer chain to reverse its electrophilic or nucleophilic character, whereby a non-reversed reactive end group on a second growing linear polymer chain reacts with the reversed reactive end group on the first growing linear polymer chain to create a branched polymer and reverses the electrophilic or nucleophilic character of the reversed reactive end group back to its first condition, whereby it may continue adding monomer in a linear fashion; and quenching the polymerization by adding a compound having multiple reactive sites capable of reacting with the reactive end groups of the polymer chains when
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: October 14, 2003
    Inventors: Rui Yin, Donald A. Tomalia, Dujie Qin, Jamie Dunham
  • Multi-lateral flow assay strip carrier assembly
    Patent number: D672053
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: December 4, 2012
    Assignee: ANP Technologies, Inc.
    Inventors: De Chen, Ray Yin, Remo Vallejo, Jr., Jing Pan, Thomas Small, Dujie Qin