Patents by Inventor Leelakrishna Kondaveti

Leelakrishna Kondaveti 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).

  • Purification of rapamycin derivatives using temperature induced phase separation
    Patent number: 11780850
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: October 10, 2023
    Assignee: Biosensors International Group, Ltd.
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, Leelakrishna Kondaveti, Aniruddh Singh
  • Purification of Rapamycin Derivatives Using Temperature Induced Phase Separation
    Publication number: 20220024947
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 27, 2022
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, Leelakrishna Kondaveti, Aniruddh Singh
  • Purification of rapamycin derivatives using temperature induced phase separation
    Patent number: 11046711
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: June 29, 2021
    Assignee: Biosensors International Group, Ltd.
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, Leelakrishna Kondaveti, Aniruddh Singh
  • PURIFICATION OF RAPAMYCIN DERIVATIVES USING TEMPERATURE INDUCED PHASE SEPARATION
    Publication number: 20200270272
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Application
    Filed: March 2, 2020
    Publication date: August 27, 2020
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, LeelaKrishna Kondaveti, Aniruddh Singh
  • Purification of rapamycin derivatives using temperature induced phase separation
    Patent number: 10597406
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 24, 2020
    Assignee: Biosensors International Group, Ltd.
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, Leelakrishna Kondaveti, Aniruddh Singh
  • Purification of Rapamycin Derivatives Using Temperature Induced Phase Separation
    Publication number: 20190256527
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Application
    Filed: December 18, 2018
    Publication date: August 22, 2019
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, Leelakrishna Kondaveti, Aniruddh Singh
  • Purification of rapamycin derivatives using temperature induced phase separation
    Patent number: 10202402
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 12, 2019
    Assignee: Biosensors International Group, Ltd.
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, Leelakrishna Kondaveti, Aniruddh Singh
  • Purification of Rapamycin Derivatives Using Temperature Induced Phase Separation
    Publication number: 20170334928
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Application
    Filed: February 2, 2017
    Publication date: November 23, 2017
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, Leelakrishna Kondaveti, Aniruddh Singh
  • Purification of rapamycin derivatives using temperature induced phase separation
    Patent number: 9598439
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: March 21, 2017
    Assignee: BIOSENSORS INTERNATIONAL GROUP, LTD.
    Inventors: Margaret W. Kayo, Richard S. Fornicola, Ivan Kovacik, Leelakrishna Kondaveti, Aniruddh Singh
  • PURIFICATION OF RAPAMYCIN DERIVATIVES USING TEMPERATURE INDUCED PHASE SEPARATION
    Publication number: 20160002262
    Abstract: The present invention provides methods for obtaining purified rapamycin derivatives, including purified Biolimus A9. A crystalline form of Biolimus A9 is also described.
    Type: Application
    Filed: September 14, 2015
    Publication date: January 7, 2016
    Inventors: MARGARET W. KAYO, RICHARD S. FORNICOLA, IVAN KOVACIK, LEELAKRISHNA KONDAVETI, ANIRUDDH SINGH
  • PROCESS FOR THE PREPARATION OF 1,1,1,2-TETRAFLUOROETHANE
    Publication number: 20110201495
    Abstract: The present invention relates to a process for preparing a co-precipated Cr2O3/Al2O3 catalyst promoted by Zinc, said process comprising co-precipatation of chromium and aluminum metal hydroxides from corresponding trivalent metal salt solutions using NH4OH, NaOH or KOH as a base and followed by calicination to give mixed oxide precatalyst in amorphous from which is impregnated with an activity promoting amount of Zinc compound.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 18, 2011
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Jampani Madhusudana RAO, Shanthan Pamulaparthy RAO, Siva Attaluri PRASAD, Banda NARASAIAH, Narayan Sripathi REDDY, Radhakrishnan KUPPUSAMY, Vijayakumar VEERAMACHANENI, Patil Kamalakar SUKHADEORAO, Rambabu YADLA, Koosampally SRINIVAS, Leelakrishna KONDAVETI
  • Process for the preparation of 1,1,1,2-tetrafluoroethane
    Patent number: 7982074
    Abstract: The present invention relates to a process for preparing a co-precipitated Cr2O3/Al2O3 catalyst promoted by Zinc, said process comprising co-precipatation of chromium and aluminum metal hydroxides from corresponding trivalent metal salt solutions using NH4OH, NaOH or KOH as a base and followed by calcination to give mixed oxide precatalyst in amorphous from which is impregnated with an activity promoting amount of Zinc compound. The catalyst is used for the preparation of HFC-134a by fluorination of trichloroethylene and fluorination of intermediate of the former reaction (HCFC-133a).
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: July 19, 2011
    Assignee: Council of Scientific & Industrial Research
    Inventors: Jampani Madhusudana Rao, Shanthan Pamulaparthy Rao, Siva Attaluri Prasad, Banda Narasaiah, Narayan Sripathi Reddy, Radhakrishnan Kuppusamy, Vijayakumar Veeramachaneni, Patil Kamalakar Sukhadeorao, Rambabu Yadla, Koosampally Srinivas, Leelakrishna Kondaveti
  • Process for the preparation of 1,1,1,2-tetrafluoroethane
    Publication number: 20070106100
    Abstract: The present invention relates to a process for preparing a co-precipitated Cr2O3/Al2O3 catalyst promoted by Zinc, said process comprising co-precipatation of chromium and aluminum metal hydroxides from corresponding trivalent metal salt solutions using NH4OH, NaOH or KOH as a base and followed by calcination to give mixed oxide precatalyst in amorphous from which is impregnated with an activity promoting amount of Zinc compound. The catalyst is used for the preparation of HFC-134a by fluorination of trichloroethylene and fluorination of intermediate of the former reaction (HCFC-133a).
    Type: Application
    Filed: December 22, 2006
    Publication date: May 10, 2007
    Inventors: Jampani Rao, Shanthan Rao, Siva Prasad, Banda Narasaiah, Narayan Reddy, Radhakrishnan Kuppusamy, Vijayakumar Veeramachaneni, Patil Sukhadeorao, Rambabu Yadla, Koosampally Srinivas, Leelakrishna Kondaveti