Patents by Inventor Harish Ravivarapu

Harish Ravivarapu 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: 20220249479
    Abstract: The present disclosure relates to modified release formulations of 2-methyl-2-(3-methyl-4-(4-(methylamino)-5-(trifluoromethyl)pyrimidin-2-ylamino)-IH-pyrazol-1-propanenitrile or solvates, tautomers, and pharmaceutically acceptable salts thereof, and methods of treatment with the modified release formulations.
    Type: Application
    Filed: May 29, 2020
    Publication date: August 11, 2022
    Applicant: DENALI THERAPEUTICS INC.
    Inventors: Harish RAVIVARAPU, Travis REMARCHUK, Anantha SUDHAKAR, Bradley K. WONG
  • Patent number: 11058705
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: July 13, 2021
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Rajashree Joshi-Hangal, Chunlin Tang, Sanjeev Redkar, Harish Ravivarapu
  • Publication number: 20200155588
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 21, 2020
    Inventors: Rajashree JOSHI-HANGAL, Chunlin TANG, Sanjeev REDKAR, Harish RAVIVARAPU
  • Patent number: 10517886
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: December 31, 2019
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Rajashree Joshi-Hangal, Chunlin Tang, Sanjeev Redkar, Harish Ravivarapu
  • Publication number: 20180369267
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 27, 2018
    Inventors: Rajashree JOSHI-HANGAL, Chunlin TANG, Sanjeev REDKAR, Harish RAVIVARAPU
  • Patent number: 9913856
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: March 13, 2018
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Rajashree Joshi-Hangal, Chunlin Tang, Sanjeev Redkar, Harish Ravivarapu
  • Publication number: 20160346310
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumours using the formulations are described.
    Type: Application
    Filed: June 6, 2016
    Publication date: December 1, 2016
    Inventors: Rajashree JOSHI-HANGAL, Chunlin TANG, Sanjeev REDKAR, Harish RAVIVARAPU
  • Patent number: 9381207
    Abstract: The invention provides derivatives of decitabine with superior chemical stability and shelf life, with similar physiological activity. The derivatives are provided in a non-aqueous formulation, which further stabilizes the derivatives. Methods of treating one or more myelodysplastic syndromes, leukemia, or solid tumors using the formulations are described.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: July 5, 2016
    Assignee: ASTEX PHARMACEUTICALS, INC.
    Inventors: Rajashree Joshi-Hangal, Chunlin Tang, Sanjeev Redkar, Harish Ravivarapu
  • Publication number: 20160106805
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Application
    Filed: November 2, 2015
    Publication date: April 21, 2016
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Patent number: 9254307
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: February 9, 2016
    Assignee: Tolmar Therapeutics, Inc.
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Publication number: 20150150937
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 4, 2015
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Patent number: 8486455
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: July 16, 2013
    Assignee: Tolmar Therapeutics, Inc.
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Publication number: 20100234305
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Application
    Filed: May 20, 2010
    Publication date: September 16, 2010
    Applicant: QLT USA, INC.
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Publication number: 20100226954
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Application
    Filed: May 20, 2010
    Publication date: September 9, 2010
    Applicant: QLT USA, INC.
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Publication number: 20070104759
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Application
    Filed: December 21, 2006
    Publication date: May 10, 2007
    Inventors: Richard Dunn, John Garrett, Harish Ravivarapu, Bhagya Chandrashekar
  • Publication number: 20040229912
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Application
    Filed: June 21, 2004
    Publication date: November 18, 2004
    Applicant: Atrix Laboratories, Inc.
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Publication number: 20040162263
    Abstract: Oral formulations of pharmaceuticals are provided with enhanced bioavailability by targeting specific regions of the gastrointestinal tract. Particularly, water soluble and acid-labile drugs such as cytidine analogs (e.g., decitabine) and 2′-deoxyadenosine analogs (e.g., pentostatin) are formulated with pH-sensitive polymers so that these drugs are preferably absorbed in the upper regions of the small intestine, such as the jejunum. In addition, drugs with poor oral bioavailability such as camptothecin compounds (e.g., 9-nitro-camptothecin) can also be formulated using similar strategies in order to significantly improve their oral bioavailability. These formulations can be used to treat a wide variety of diseases or conditions, such hematological disorders, benign tumors, cancer, restenosis, inflammatory diseases, and autoimmune diseases.
    Type: Application
    Filed: October 31, 2003
    Publication date: August 19, 2004
    Applicant: SuperGen, Inc., a Delaware Corporation
    Inventors: Howard Sands, Sanjeev Redkar, Harish Ravivarapu
  • Patent number: 6773714
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: August 10, 2004
    Assignee: Atrix Laboratories, Inc.
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Publication number: 20030133964
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Application
    Filed: February 24, 2003
    Publication date: July 17, 2003
    Applicant: Atrix Laboratories, Inc.
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L. Chandrashekar
  • Patent number: 6565874
    Abstract: The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: May 20, 2003
    Assignee: Atrix Laboratories
    Inventors: Richard L. Dunn, John Steven Garrett, Harish Ravivarapu, Bhagya L Chandrashekar