Patents by Inventor Ramesh Venkat

Ramesh Venkat 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: 20230322871
    Abstract: The present invention relates to expression of Pneumococcal Surface Protein A (PspA). The invention represents an advancement in the field of genetic engineering and vaccine technology. The invention discloses expression vectors and recombinant host cells for expression of truncated PspA peptide. The invention also discloses vaccine compositions comprising the truncated peptides as carrier protein.
    Type: Application
    Filed: June 21, 2023
    Publication date: October 12, 2023
    Inventors: Rajan Sriraman, Ramesh Venkat Matur, Narender Dev Mantena, Mahima Datla, Swetha Kamireddy
  • Patent number: 11725029
    Abstract: The present invention relates to expression of Pneumococcal Surface Protein A (PspA). The invention represents an advancement in the field of genetic engineering and vaccine technology. The invention discloses expression vectors and recombinant host cells for expression of truncated PspA peptide. The invention also discloses vaccine compositions comprising the truncated peptides as carrier protein.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: August 15, 2023
    Inventors: Rajan Sriraman, Ramesh Venkat Matur, Narender Dev Mantena, Mahima Datla, Swetha Kamireddy
  • Patent number: 11680111
    Abstract: The invention relates to a method for the removal of protein and other impurities from microbial capsular polysaccharides. More particularly, the present invention relates to isolation of microbial capsular polysaccharides in pure form after removal of protein and other impurities.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: June 20, 2023
    Inventors: Ramesh Venkat Matur, Vivek Babu Kandimalla, Narender Dev Mantena, Mahima Datla, Muthyala Venkateswara Reddy, Kantam Charan
  • 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: 20230002468
    Abstract: The invention relates to an N-terminal extension sequences which are employed to enhance the expression of recombinant therapeutic peptides. The invention also relates to a process for the high-level expression of recombinant therapeutic peptides using the said N-terminal extension sequence. The invention also provides nucleic acids, vectors and recombinant host cells for efficient production of biologically active proteins such as lirapeptide.
    Type: Application
    Filed: September 12, 2020
    Publication date: January 5, 2023
    Inventors: Ramesh Venkat MATUR, Rajan SRIRAMAN, Pavan Reddy REGATTI, 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
  • Patent number: 11098089
    Abstract: The present invention provides an improved method for the production of CRM197 with high yield using engineered Corynebacterium diphtheria strain having an increased copy number of the CRM197 gene, wherein the method comprises growing the strain in media free of animal-derived components with one or more amino acids.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: August 24, 2021
    Inventors: Balamurali Masilamani, Rajan Sriraman, Mandar Shirish Dixit, Deviprasanna Chakka, Satyam Naidu Sureddi, Ramesh Venkat Matur, Narender Dev Mantena, Mahima Datla
  • Publication number: 20210017300
    Abstract: The invention relates to a method for the removal of protein and other impurities from microbial capsular polysaccharides. More particularly, the present invention relates to isolation of microbial capsular polysaccharides in pure form after removal of protein and other impurities.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 21, 2021
    Inventors: Ramesh Venkat Matur, Vivek Babu Kandimalla, Narender Dev Mantena, Mahima Datla, Muthyala Venkateswara Reddy, Kantam Charan
  • Publication number: 20210009641
    Abstract: The present invention relates to expression of Pneumococcal Surface Protein A (PspA). The invention represents an advancement in the field of genetic engineering and vaccine technology. The invention discloses expression vectors and recombinant host cells for expression of truncated PspA peptide. The invention also discloses vaccine compositions comprising the truncated peptides as carrier protein.
    Type: Application
    Filed: March 1, 2019
    Publication date: January 14, 2021
    Inventors: Rajan Sriraman, Ramesh Venkat Matur, Narender Dev Mantena, Mahima Datla, Swetha Kamireddy
  • Patent number: 10836839
    Abstract: The invention relates to a method for the removal of protein and other impurities from microbial capsular polysaccharides. More particularly, the present invention relates to isolation of microbial capsular polysaccharides in pure form after removal of protein and other impurities.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: November 17, 2020
    Assignee: BIOLOGICAL E LIMITED
    Inventors: Ramesh Venkat Matur, Vivek Babu Kandimalla, Narender Dev Mantena, Mahima Datla, Muthyala Venkateswara Reddy, Kantam Charan
  • Publication number: 20200277341
    Abstract: The present invention provides an improved method for the production of CRM197 with high yield using engineered Corynebacterium diphtheria strain having an increased copy number of the CRM197 gene, wherein the method comprises growing the strain in media free of animal-derived components with one or more amino acids.
    Type: Application
    Filed: April 19, 2018
    Publication date: September 3, 2020
    Inventors: Balamurali Masilamani, Rajan Sriraman, Mandar Shirish Dixit, Deviprasanna Chakka, Satyam Naidu Sureddi, Ramesh Venkat Matur, 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
  • Publication number: 20180155453
    Abstract: The invention relates to a method for the removal of protein and other impurities from microbial capsular polysaccharides. More particularly, the present invention relates to isolation of microbial capsular polysaccharides in pure form after removal of protein and other impurities.
    Type: Application
    Filed: April 25, 2016
    Publication date: June 7, 2018
    Applicant: BIOLOGICAL E LIMITED
    Inventors: Ramesh Venkat Matur, Vivek Babu Kandimalla, Narender Dev Mantena, Mahima Datla, Muthyala Venkateswara Reddy, Kantam Charan
  • Patent number: 7316917
    Abstract: The invention relates to an enzymatic process for the production of an intermediate, bicyclic-heteroaryl-2-carboxylic acid 7, of the formula wherein X and Y are defined in the specification and which are useful in the preparation of beta-lactamase inhibitors, by selective enzymatic hydrolysis of a mixture of positional hydrolyzable esters of the formulae where X, Y, and R1 are defined in the specification.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: January 8, 2008
    Assignee: Wyeth Holdings Corporation
    Inventors: Ramesh Venkat Matur, Mark Edward Ruppen