Patents by Inventor Umesh R. Desai

Umesh R. Desai 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: 20220169673
    Abstract: A group of specific sulfated flavonoid agents carrying cholesterol modification display promising in vivo anti-cancer activity through selective inhibition of cancer stem cells, and not of adult or hematopoietic stem cells. The compounds exhibit high potency, excellent oral bioavailability and a physiologically relevant therapeutic window.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 2, 2022
    Inventors: Umesh R. DESAI, Balaji NAGARAJAN, Connor O'HARA, Daniel Kwame AFOSAH, Elsamani I. ABDELFADIEL, Jyothi SISTLA, Rahaman Navaz GANGJI, Ravikumar ONGOLU, Shravan MORLA, Viji SANKARANARAYANAN, Bhaumik B. PATEL, Chetna SHARON, Rio BOOTHELLO, Alberto VERA
  • Patent number: 9850221
    Abstract: Sulfated and unsulfated flavonoid oligomers as inhibitors of cancer stem cells (CSCs) are provided. In particular, sulfated flavonoid dimers are shown to selectively inhibit CSCs growth and self-renewal both in vitro and in vivo.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: December 26, 2017
    Assignee: VIRGINIA COMMONWEALTH UNIVERSITY
    Inventors: Umesh R. Desai, Rajesh Karuturi, Bhaumik B. Patel, Nirmita J. Patel
  • Patent number: 9777123
    Abstract: Low molecular weight sulfated beta-O4 lignin (SbO4L) are potent inhibitors of coagulation with high selectivity.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: October 3, 2017
    Assignee: Virginia Commonwealth University
    Inventors: Umesh R. Desai, Jay Thakkar, Akul Mehta
  • Patent number: 9758459
    Abstract: Compounds which allosterically modulate and/or inhibit factor XIa activity are provided, as are methods of their use. These compounds include i) sulfated gallolyl glucosides, ii) sulfated quinazolinones, and iii) sulfated inositol analogs. The compounds used as anticoagulant agents.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: September 12, 2017
    Assignee: Virginia Commonwealth University
    Inventors: Umesh R. Desai, Rajesh Karuturi, Akul Mehta, Rami A. Al-Horani
  • Publication number: 20170058319
    Abstract: Constructs and monitoring systems to assess the level of molecules that bind to thrombin (e.g. thrombin regulators and inhibitors) are provided. The constructs are nanosensors comprising i) a thrombin molecule to which is bound a reporter ligand comprising a fluorescent label, ii) a fluorescence-quenching metal nanoparticle, and, optionally iii) a fluorescence-quenching dye molecule attached to one or both of the nanoparticle and the thrombin molecule. The binding of a thrombin regulator or inhibitor to the thrombin molecule displaces the reporter ligand, and the signal from the fluorescent label increases. The increase is proportional to the concentration of thrombin-binding molecule in the sample.
    Type: Application
    Filed: March 25, 2015
    Publication date: March 2, 2017
    Inventors: Umesh R. Desai, Bruce D. Spiess, Donald F. Brophy, Erika J. Martin, Kuberan Balagurunathan
  • Publication number: 20160311842
    Abstract: Compounds which allosterically modulate and/or inhibit factor XIa activity are provided, as are methods of their use. These compounds include i) sulfated gallolyl glucosides, ii) sulfated quinazolinones, and iii) sulfated inositol analogs. The compounds used as anticoagulant agents.
    Type: Application
    Filed: November 12, 2013
    Publication date: October 27, 2016
    Inventors: Umesh R. DESAI, Rajesh KARUTURI, Akul MEHTA, Rami A. AL-HORANI
  • Publication number: 20160280676
    Abstract: Sulfated and unsulfated flavonoid oligomers as inhibitors of cancer stem cells (CSCs) are provided. In particular, sulfated flavonoid dimers are shown to selectively inhibit CSCs growth and self-renewal both in vitro and in vivo.
    Type: Application
    Filed: November 7, 2014
    Publication date: September 29, 2016
    Inventors: Umesh R. Desai, Rajesh Karuturi, Bhaumik B. Patel, Nirmita J. Patel
  • Publication number: 20160201112
    Abstract: High sensitivity nanosensors for detecting the inhibition of glycosaminoglycan (GAG)-cleaving enzymes are provided. Methods of using the nanosensors include detecting contaminants in commercial GAG preparations (e.g. heparin preparations) by measuring the activity levels of a GAG)-cleaving enzyme in the presence of a sample which may contain a contaminant that inhibits the GAG-cleaving enzyme.
    Type: Application
    Filed: September 8, 2014
    Publication date: July 14, 2016
    Applicant: VIRGINIA COMMONWEALTH UNIVERSITY
    Inventors: Umesh R. Desai, Mausam Kalita, Kuberan Balagurunathan
  • Publication number: 20160115280
    Abstract: Low molecular weight sulfated beta-O4 lignin (SbO4L) are potent inhibitors of coagulation with high selectivity.
    Type: Application
    Filed: May 29, 2014
    Publication date: April 28, 2016
    Inventors: Umesh R. Desai, Jay Thakkar, Akul Mehta
  • Patent number: 8993620
    Abstract: Cinnamic acid-based oligomers and therapeutic uses thereof are provided. The oligomers are used as anti-inflammation agents, inhibitors of elastase and anti-oxidants, and in some cases (e.g. the treatment of lung disorders such as lung cancer) all three activities are simultaneously beneficial. Subsets of the oligomers (e.g. ?-O4 and ?-5 trimers and tetramers) are used as anticoagulants.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: March 31, 2015
    Assignee: Virginia Commonwealth University
    Inventors: Umesh R. Desai, Brian L. Henry, Aiye Liang, Jay Thakkar, John B. Mangrum, Ivo Torres Filho, Bruce D. Spiess, Masahiro Sakagami, Bhawana Saluja
  • Publication number: 20140080904
    Abstract: Cinnamic acid-based oligomers and therapeutic uses thereof are provided. The oligomers are used as anti-inflammation agents, inhibitors of elastase and anti-oxidants, and in some cases (e.g. the treatment of lung disorders such as lung cancer) all three activities are simultaneously beneficial. Subsets of the oligomers (e.g. ?-O4 and ?-5 trimers and tetramers) are used as anticoagulants.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: Virginia Commonwealth University
    Inventors: Umesh R. Desai, Brian L. Henry, Aiye Liang, Jay Thakkar, John B. Mangrum, Ivo Torres Filho, Bruce D. Spiess, Masahiro Sakagami, Bhawana Saluja
  • Patent number: 8613909
    Abstract: Cinnamic acid-based oligomers and therapeutic uses thereof are provided. The oligomers are used as anti-inflammation agents, inhibitors of elastase and anti-oxidants, and in some cases (e.g. the treatment of lung disorders such as lung cancer) all three activities are simultaneously beneficial. Subsets of the oligomers (e.g. ?-O4 and ?-5 trimers and tetramers) are used as anticoagulants.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: December 24, 2013
    Assignee: Virginia Commonwealth University
    Inventors: Umesh R. Desai, Brian L. Henry, Aiye Liang, Jay Thakkar, John B. Mangrum, Ivo Torres Filho, Bruce D. Spiess, Masahiro Sakagami, Bhawana Saluja
  • Publication number: 20130289106
    Abstract: Cinnamic acid-based oligomers and therapeutic uses thereof are provided. The oligomers are used as anti-inflammation agents, inhibitors of elastase and anti-oxidants, and in some cases (e.g. the treatment of lung disorders such as lung cancer) all three activities are simultaneously beneficial. Subsets of the oligomers (e.g. ?-O4 and ?-5 trimers and tetramers) are used as anticoagulants.
    Type: Application
    Filed: June 25, 2013
    Publication date: October 31, 2013
    Inventors: Umesh R. Desai, Brian L. Henry, Aiye Liang, Jay Thakkar, John B. Mangrum, Ivo Torres Filho, Bruce D. Spiess, Masahiro Sakagami, Bhawana Saluja
  • Patent number: 8491872
    Abstract: Cinnamic acid-based oligomers and therapeutic uses thereof are provided. The oligomers are used as anti-inflammation agents, inhibitors of elastase and anti-oxidants, and in some cases (e.g. the treatment of lung disorders such as lung cancer) all three activities are simultaneously beneficial. Subsets of the oligomers (e.g. ?-O4 and ?-5 trimers and tetramers) are used as anticoagulants.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: July 23, 2013
    Assignee: Virginia Commonwealth University
    Inventors: Umesh R. Desai, Brian L. Henry, Aiye Liang, Jay Thakkar, John B. Mangrum, Ivo Torres Filho, Bruce D. Spiess, Masahiro Sakagami, Bhawana Saluja
  • Patent number: 8262881
    Abstract: Methods to generate a distinctive fingerprint (pattern of migration) for a sample of complex, polydisperse heparins are provided. The methods involve adding resolving agents such as polyamines to a heparin sample and then analyzing the sample with a technique that separates macromolecules according to charge to mass ratio (e.g. capillary electrophoresis). The resulting electropherogram is unique to and characteristic of the heparin sample. The methods may be used, for example, to monitor the quality and consistency of various heparin preparations.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: September 11, 2012
    Assignee: Virginia Commonwealth University
    Inventors: Umesh R. Desai, J. Timothy King
  • Publication number: 20120027691
    Abstract: Cinnamic acid-based oligomers and therapeutic uses thereof are provided. The oligomers are used as anti-inflammation agents, inhibitors of elastase and anti-oxidants, and in some cases (e.g. the treatment of lung disorders such as lung cancer) all three activities are simultaneously beneficial. Subsets of the oligomers (e.g. ?-O4 and ?-5 trimers and tetramers) are used as anticoagulants.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 2, 2012
    Inventors: Umesh R. Desai, Brian L. Henry, Aiye Liang, Jay Thakkar, John B. Mangrum, Ivo Torres Filho, Bruce D. Spiess, Masahiro Sakagami, Bhawana Saluja
  • Publication number: 20110060578
    Abstract: An agent-based modeling system (ABMS) is employed to quantitatively analyze individual components of each system of the coagulation-immune/inflammatory-fibrinolysis system at every point of simulation. ABMS is a dynamic modeling and simulation tool that allows the study of dynamic non-linear networked systems. ABMS represents a non-reductionist approach of studying the biologic process as a whole, while retaining information at the level of an individual component.
    Type: Application
    Filed: March 3, 2009
    Publication date: March 10, 2011
    Applicant: Virginia Commonwealth University
    Inventors: Kevin Ward, Umesh R. Desai, Nathan Menke, Lemont B. Kier, C.K. Cheng
  • Publication number: 20110048946
    Abstract: Methods to generate a distinctive fingerprint (pattern of migration) for a sample of complex, polydisperse heparins are provided. The methods involve adding resolving agents such as polyamines to a heparin sample and then analyzing the sample with a technique that separates macromolecules according to charge to mass ratio (e.g. capillary electrophoresis). The resulting electropherogram is unique to and characteristic of the heparin sample. The methods may be used, for example, to monitor the quality and consistency of various heparin preparations.
    Type: Application
    Filed: February 27, 2009
    Publication date: March 3, 2011
    Inventors: Umesh R. Desai, J. Timothy King
  • Patent number: 7402594
    Abstract: Sulfated bis-cyclic compounds that are potent anticoagulants and methods for their manufacture are provided. The sulfated compounds are bis-cyclic moieties comprised of an isoquinoline ring joined to a phenyl ring with the general chemical structure formula (I) where R2 is hydrogen or a sulfate moiety, R3 is either hydrogen or carboxylate moiety; R4 is a hydrogen or oxygen; and R5 is a hydrogen if R4 is a hydrogen, and is absent if R4 is oxygen. Counterions such as sodium may also be coordinated to the sulfate and carboxylate moieties.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: July 22, 2008
    Assignee: Virginia Commonwealth University
    Inventors: Umesh R. Desai, Gunnar Gunnarsson