Patents by Inventor Rajendar Burki

Rajendar Burki 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: 20240133818
    Abstract: The present invention provides a novel reference standard, comprising of activated-quenched polysaccharide, for quantifying polysaccharide content in a vaccine composition using nephelometry. The invention also provides a method for preparing the activated-quenched polysaccharide, for use as a reference standard. Further, a nephelometry based method for quantifying the polysaccharides in a multivalent conjugate vaccine is also provided. The reference standard of the present invention, comprising of the activated-quenched polysaccharide, is stable and can be used for accurate quantification of polysaccharides through nephelometry.
    Type: Application
    Filed: February 25, 2022
    Publication date: April 25, 2024
    Inventors: Rajendar BURKI, Jaya Sheela PYDIGUMMALA, Sreenivasa Rao GANTI, Siva Prasad KANNURI, Shravan Kumar RENUKUNTLA, Ramesh Venkat MATUR, Narender Dev MANTENA, Mahima DATLA
  • Publication number: 20230101892
    Abstract: The present disclosure relates to multivalent pneumococcal vaccine compositions comprising capsular pneumococcal polysaccharide serotypes each individually conjugated to carrier proteins. When conjugated, the combination of the capsular pneumococcal polysaccharide serotype and the carrier protein is referred to herein as a polysaccharide-protein conjugate. The pneumococcal vaccine compositions may further comprise one or more of the following: a pharmaceutically acceptable carrier, a pharmaceutically acceptable diluent, a buffer, a preservative, a stabilizer, an adjuvant, and/or a lyophilization excipient. Methods of making and administering the pneumococcal vaccine compositions described herein are also provided.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Inventors: Ramesh Venkat Matur, Rajan Sriraman, Deviprasanna Chakka, Satyam Naidu Sureddi, Rajendar Burki, Sreenivasa Rao Ganti, Narender Dev Mantena, Mahima Datla
  • Patent number: 11547752
    Abstract: The present disclosure relates to multivalent pneumococcal vaccine compositions comprising capsular pneumococcal polysaccharide serotypes each individually conjugated to carrier proteins. When conjugated, the combination of the capsular pneumococcal polysaccharide serotype and the carrier protein is referred to herein as a polysaccharide-protein conjugate. The pneumococcal vaccine compositions may further comprise one or more of the following; a pharmaceutically acceptable carrier, a pharmaceutically acceptable diluent, a buffer, a preservative, a stabilizer, an adjuvant, and/or a lyophilization excipient. Methods of making and administering the pneumococcal vaccine compositions described herein are also provided.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: January 10, 2023
    Inventors: Ramesh Venkat Matur, Rajan Sriraman, Deviprasanna Chakka, Satyam Naidu Sureddi, Rajendar Burki, Sreenivasa Rao Ganti, Narender Dev Mantena, Mahima Datla
  • Publication number: 20220390423
    Abstract: The present invention provides a colorimetric based method for quantifying carbohydrates in a given aqueous sample. The method provided by the invention uses 2-Phenoxyethanol as a novel reagent for quantifying carbohydrates in a given sample. The present invention is a rapid, sensitive, simple and direct method for carbohydrate quantification.
    Type: Application
    Filed: September 30, 2020
    Publication date: December 8, 2022
    Inventors: Rajendar BURKI, Ramesh Venkat MATUR, Narender Dev MANTENA, Mahima DATLA
  • Publication number: 20220143166
    Abstract: The present invention relates to multivalent pneumococcal polysaccharide-protein conjugates vaccine composition comprising pneumococcal capsular polysaccharide of one or more Streptococcus pneumoniae serotypes conjugated to one or more carrier proteins.
    Type: Application
    Filed: October 11, 2019
    Publication date: May 12, 2022
    Inventors: Rajendar BURKI, Rajan SRIRAMAN, Ramesh Venkat MATUR, Narender Dev MANTENA, Mahima DATLA, Balamurali MASILAMANI, Vivek Babu KANDIMALLA, Veerapandu SANGAREDDY
  • Publication number: 20210346488
    Abstract: The invention relates to capsular polysaccharides of Streptococcus pneumoniae. More specifically, the present invention relates to sized and purified capsular polysaccharides of Streptococcus pneumoniae serotypes 2, 15A, 15C & 35B and process for their preparation.
    Type: Application
    Filed: September 23, 2019
    Publication date: November 11, 2021
    Inventors: Rajendar Burki, Vivek Babu Kandimalla, Rajan Sriraman, Ramesh Venkat Matur, Narender Dev Mantena, Mahima Datla, Veerapandu Sangareddy
  • Publication number: 20210322533
    Abstract: The present invention relates to vaccine formulations comprising preservative systems. More particularly, the present invention relates to preservative systems for vaccine formulations which is free of thiomersal, and comprising 2-phenoxyethanol and at least one other preservative selected from m-cresol, benzyl alcohol, phenol and benzoic acid.
    Type: Application
    Filed: July 19, 2019
    Publication date: October 21, 2021
    Inventors: Veerapandu Sangareddy, Rajendar Burki, Rajan Sriraman, Ramesh Venkat Matur, Narender Dev Mantena, Mahima Datla
  • Patent number: 11147863
    Abstract: The present invention relates to a multivalent Pneumococcal conjugate vaccine (PCV) composition comprising: 1) at least 12 capsular polysaccharides selected from serotypes 1, 3, 4, 5, 6B, 7F, 9N, 9V, 15B, 14, 18C, 19A, 19F, 22F, 23F and 33F of S. pneumoniae activated with CDAP and conjugated to carrier protein selected from CRM197, pneumococcal surface protein A (PspA), pneumococcal adhesin protein (PsaA) or combination thereof and 2) a pharmaceutically acceptable carrier, wherein the composition does not contain capsular polysaccharide from serotype 6A.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: October 19, 2021
    Inventors: Ramesh Venkat Matur, Nagarajan Thirumeni, Rajendar Burki, Narender Dev Mantena, Mahima Datla
  • Publication number: 20190240308
    Abstract: The present invention relates to a multivalent Pneumococcal conjugate vaccine (PCV) composition comprising: 1) at least 12 capsular polysaccharides selected from serotypes 1, 3, 4, 5, 6B, 7F, 9N, 9V, 15B, 14, 18C, 19A, 19F, 22F, 23F and 33F of S. pneumoniae activated with CDAP and conjugated to carrier protein selected from CRM197, pneumococcal surface protein A (PspA), pneumococcal adhesin protein (PsaA) or combination thereof and 2) a pharmaceutically acceptable carrier, wherein the composition does not contain capsular polysaccharide from serotype 6A.
    Type: Application
    Filed: June 21, 2016
    Publication date: August 8, 2019
    Inventors: Ramesh Venkat Matur, Nagarajan Thirumeni, Rajendar Burki, Narender Dev Mantena, Mahima Datla
  • Publication number: 20190224295
    Abstract: The present disclosure relates to multivalent pneumococcal vaccine compositions comprising capsular pneumococcal polysaccharide serotypes each individually conjugated to carrier proteins. When conjugated, the combination of the capsular pneumococcal polysaccharide serotype and the carrier protein is referred to herein as a polysaccharide-protein conjugate. The pneumococcal vaccine compositions may further comprise one or more of the following; a pharmaceutically acceptable carrier, a pharmaceutically acceptable diluent, a buffer, a preservative, a stabilizer, an adjuvant, and/or a lyophilization excipient. Methods of making and administering the pneumococcal vaccine compositions described herein are also provided.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Inventors: Ramesh Venkat Matur, Rajan Sriraman, Deviprasanna Chakka, Satyam Naidu Sureddi, Rajendar Burki, Sreenivasa Rao Ganti, Narender Dev Mantena, Mahima Datla