Patents by Inventor Ajit Varki

Ajit Varki 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: 20100293624
    Abstract: This application is in the field of sialic acid chemistry, metabolism, antigenicity, and the production of transgenic non-human mammals with altered sialic acid production. More particularly, this application relates to N-glycolylneuraminic acid (Neu5Gc) being an immunogen in humans, and the production of Neu5Gc-free mammalian products for laboratory and human use.
    Type: Application
    Filed: June 8, 2006
    Publication date: November 18, 2010
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Ajit Varki, Anna Maria Hedlund, Dzung Nguyen
  • Publication number: 20100249383
    Abstract: The present invention provides methods and compositions involved in the inflammatory response, as well as various pathological processes. In particular, the present invention provides novel antibodies directed against novel glycans that are enriched on endothelial cell surfaces. In addition, the present invention provides methods and compositions involved in a previously unrecognized pathway of the inflammatory response and various pathological processes. In addition the present invention provides methods and compositions suitable to mediate the inflammatory response in various settings, as well as methods and compositions for the identification of other inflammatory response mediators.
    Type: Application
    Filed: July 13, 2009
    Publication date: September 30, 2010
    Inventors: Hudson Freeze, Geetha Srikrishna, Ajit Varki, Nissi Varki
  • Publication number: 20100221770
    Abstract: The present application is in the field of sialic acid chemistry, metabolism and antigenicity. More particularly, the present invention relates to the detection and analysis of the non-human sialic acid, N-glycolylneuraminic acid (Neu5Gc) in biological materials, such as food and clinical specimens. Such detection and analysis is facilitated by the use of Neu5Gc specific antibodies. The present invention also relates to the detection of antiNeu5Gc antibodies in clinical samples, as well as the production of anti-Neu5Gc specific antibodies.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 2, 2010
    Inventors: Ajit Varki, Pam Tangvoranuntakul, Nissi Varki, Elaine Muchmore, Pascal Gagneux, Sandra Diaz
  • Publication number: 20100081630
    Abstract: The disclosure provides in vitro and in vivo methods for identifying Heparins and Heparinoids that modulate the activity of selectins. The disclosure also provides Heparins and Heparinoids that modulate the activity of selectins. The identification and isolation of these heparin formulations has the potential to mediate a wide variety of pathologies mediated by P- and/or L-selectin, including hematogenous metastasis, diseases associated with inflammation (e.g., asthma, arthritis, allergic dermatitis), ischemia-reperfusion injury, or other pathologies such as sickle cell anemia. Selectin inhibition can be achieved at plasma concentrations lower than those that cause excessive anticoagulation or unwanted bleeding in a human subject.
    Type: Application
    Filed: December 3, 2009
    Publication date: April 1, 2010
    Inventors: Ajit Varki, Jennifer L. Stevenson
  • Patent number: 7682794
    Abstract: The present application is in the field of sialic acid chemistry, metabolism and antigenicity. More particularly, the present invention relates to the detection and analysis of the non-human sialic acid, N-glycolylneuraminic acid (Neu5Gc) in bio-logical materials, such as food and clinical specimens. Such detection and analysis is facilitated by the use of Neu5Gc specific antibodies. The present invention also relates to the detection of anti Neu5Gc antibodies in clinical samples, as well as the production of anti-Neu5Gc specific antibodies.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: March 23, 2010
    Assignee: The Regents of the University of California
    Inventors: Ajit Varki, Pam Tangvoranuntakul, Nissi Varki, Elaine Muchmore, Pascal Gagneux, Sandra Diaz
  • Publication number: 20080166805
    Abstract: This application is in the field of sialic acid chemistry, metabolism, antigenicity, and the production of transgenic non-human mammals with altered sialic acid production. More particularly, this application relates to N-glycolylneuraminic acid (Neu5Gc) being an immunogen in humans, and the production of Neu5Gc-free mammalian products for laboratory and human use.
    Type: Application
    Filed: June 8, 2006
    Publication date: July 10, 2008
    Applicant: The Regents of the University of California
    Inventors: Ajit Varki, Anna Maria Hedlund, Dzung Nguyen
  • Publication number: 20070275409
    Abstract: The present application is in the field of sialic acid chemistry, metabolism and antigenicity. More particularly, the present invention relates to the detection and analysis of the non-human sialic acid, N-glycolylneuraminic acid (Neu5Gc) in bio-logical materials, such as food and clinical specimens. Such detection and analysis is facilitated by the use of Neu5Gc specific antibodies. The present invention also relates to the detection of anti Neu5Gc antibodies in clinical samples, as well as the production of anti-Neu5Gc specific antibodies.
    Type: Application
    Filed: July 14, 2004
    Publication date: November 29, 2007
    Inventors: Ajit Varki, Pam Tangvoranuntakul, Nissin Varki, Elaine Muchmore
  • Publication number: 20070244038
    Abstract: This disclosure relates to methods for modulating lymphocyte activity and/or proliferation by regulating the activity or expression of Siglec.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 18, 2007
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Ajit Varki, Dzung Nguyen, Nancy Hurtado-Ziola
  • Publication number: 20070021378
    Abstract: The disclosure provides in vitro and in vivo methods for identifying Heparins and Heparinoids that modulate the activity of selecting. The disclosure also provides Heparins and Heparinoids that modulate the activity of selecting. The identification and isolation of these heparin formulations has the potential to mediate a wide variety of pathologies mediated by P- and/or L-selectin, including hematogenous metastasis, diseases associated with inflammation (e.g., asthma, arthritis, allergic dermatitis), ischemia-reperfusion injury, or other pathologies such as sickle cell anemia. Selectin inhibition can be achieved at plasma concentrations lower than those that cause excessive anticoagulation or unwanted bleeding in a human subject.
    Type: Application
    Filed: July 21, 2006
    Publication date: January 25, 2007
    Applicant: The Regents of the University of California
    Inventors: Ajit Varki, Jennifer Stevenson
  • Publication number: 20050118688
    Abstract: The present invention provides methods and compositions involved in the inflammatory response, as well as various pathological processes. In particular, the present invention provides novel antibodies directed against novel glycans that are enriched on endothelial cell surfaces. In addition, the present invention provides methods and compositions involved in a previously unrecognized pathway of the inflammatory response and various pathological processes. In addition the present invention provides methods and compositions suitable to mediate the inflammatory response in various settings, as well as methods and compositions for the identification of other inflammatory response mediators.
    Type: Application
    Filed: December 27, 2002
    Publication date: June 2, 2005
    Inventors: Hudson Freeze, Geetha Srikrishna, Ajit Varki
  • Patent number: 6787365
    Abstract: The present invention provides methods of inhibiting L-selectin and P-selectin mediated binding in a subject by administering heparin to the subject in an amount that does not produce substantial anticoagulant activity or undesirable bleeding in the subject. In addition, the invention provides methods of treating a subject having a pathology characterized, at least in part, by abnormal L-selectin or P-selectin mediated binding by administering heparin to the subject in an amount that results in attaining a concentration of less than about 0.2-0.4 units heparin per ml of plasma in the subject.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: September 7, 2004
    Assignee: The Regents of the University of California
    Inventors: Ajit Varki, Andrea Koenig
  • Publication number: 20030199475
    Abstract: The present invention provides methods of inhibiting L-selectin and P-selectin mediated binding in a subject by administering heparin to the subject in an amount that does not produce substantial anticoagulant activity or undesirable bleeding in the subject. In addition, the invention provides methods of treating a subject having a pathology characterized, at least in part, by abnormal L-selectin or P-selectin mediated binding by administering heparin to the subject in an amount that results in attaining a concentration of less than about 0.2-0.4 units heparin per ml of plasma in the subject.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 23, 2003
    Applicant: The Regents of the University of California
    Inventors: Ajit Varki, Andrea Koenig
  • Patent number: 6596705
    Abstract: The present invention provides methods of inhibiting L-selectin and P-selectin mediated binding in a subject by administering heparin to the subject in an amount that does not produce substantial anticoagulant activity or undesirable bleeding in the subject. In addition, the invention provides methods of treating a subject having a pathology characterized, at least in part, by abnormal L-selectin or P-selectin mediated binding by administering heparin to the subject in an amount that results in attaining a concentration of less than about 0.2-0.4 units heparin per ml of plasma in the subject.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: July 22, 2003
    Assignee: The Regents of the University of California
    Inventors: Ajit Varki, Andrea Koenig
  • Patent number: 5449781
    Abstract: Fluorescent tagging compounds of the formula: ##STR1## wherein A is a member selected from the group consisting of an aromatic ring, a heteroaromatic ring, and a heterocyclic ring, and R is a linking moiety having from 1 to 20 carbon atoms, optionally containing nitrogen atoms, sulfur atoms, oxygen atoms, carbonyl groups, carboxyl groups, and/or amide groups, as well as fluorescent tagged oligosaccharide adducts derived therefrom are disclosed.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: September 12, 1995
    Assignee: The Regents of the University of California
    Inventors: Ajit Varki, Barry E. Rothenberg