Patents by Inventor Suddham Singh

Suddham Singh 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).

  • Patent number: 12636374
    Abstract: The present invention relates to new conjugated capsular saccharide antigens (glycoconjugates), immunogenic compositions comprising said glycoconjugates and uses thereof.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: May 26, 2026
    Assignee: Pfizer Inc.
    Inventors: Annaliesa Sybil Anderson, Caitlyn Gallagher, Jianxin Gu, Isis Kanevsky, Jin-Hwan Kim, Justin Keith Moran, Suddham Singh, Naveen Surendran
  • Publication number: 20260014241
    Abstract: The present invention relates to new conjugated capsular saccharide antigens (glycoconjugates), immunogenic compositions comprising said glycoconjugates and uses thereof.
    Type: Application
    Filed: March 5, 2025
    Publication date: January 15, 2026
    Inventors: Caitlyn GALLAGHER, Jianxin GU, Isis KANEVSKY, Suddham SINGH, Sandeep THANNA, Justin Keith MORAN
  • Publication number: 20250381259
    Abstract: The present invention relates to new conjugated capsular saccharide antigens (glycoconjugates), immunogenic compositions comprising said glycoconjugates and uses thereof.
    Type: Application
    Filed: January 10, 2023
    Publication date: December 18, 2025
    Inventors: Annaliesa Sybil ANDERSON, Caitlyn GALLAGHER, Jianxin GU, Isis KANEVSKY, Jin-Hwan KIM, Justin Keith MORAN, Suddham SINGH, Abhishek Ravindra VARTAK, YuYing YANG
  • Publication number: 20250281590
    Abstract: In one aspect, the present disclosure relates to an immunogenic composition comprising conjugated O-polysaccharide molecules derived from E. coli lipopolysaccharides. In one embodiment, the O-polysaccharide molecules are conjugated to streptococcal C5a peptidase (SCP). In some embodiments, the O-polysaccharide molecules are conjugated to SCP using click chemistry.
    Type: Application
    Filed: March 10, 2025
    Publication date: September 11, 2025
    Inventors: Catherine Alex, Robert George Konrad Donald, Michaela Kathryn Feeney, Navdeep Kaur, Jin-hwan Kim, Srinivas Kodali, Rosalind Pan, Axay Manojbhai Patel, Suddham Singh, Abhishek Ravindra Vartak, YuYing Yang
  • Publication number: 20250121044
    Abstract: In one aspect, the invention relates to an immunogenic composition comprising modified O-polysaccharide molecules derived from E. coli lipopolysaccharides and conjugates thereof. Multivalent vaccines may be prepared by combining two or more monovalent immunogenic compositions for different E. coli serotypes. In one embodiment, the modified O-polysaccharide molecules are produced by a recombinant bacterium that includes a wzz gene.
    Type: Application
    Filed: September 9, 2024
    Publication date: April 17, 2025
    Inventors: Robert G.K. Donald, Annaliesa Sybil Anderson, Laurent Oliver Chorro, Jianxin Gu, Jin-Hwan Kim, Srinivas Kodali, Jason Arnold Lotvin, Justin Keith Moran, Rosalind Pan, Avvari Krishna Prasad, Mark Edward Ruppen, Suddham Singh, Ling Chu, Scott Ellis Lomberk, Karen Kiyoko Takane, Nishith Merchant, Wei Chen
  • Patent number: 12128095
    Abstract: In one aspect, the invention relates to an immunogenic composition comprising modified O-polysaccharide molecules derived from E. coli lipopolysaccharides and conjugates thereof. Multivalent vaccines may be prepared by combining two or more monovalent immunogenic compositions for different E. coli serotypes. In one embodiment, the modified O-polysaccharide molecules are produced by a recombinant bacterium that includes a wzz gene.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: October 29, 2024
    Assignee: Pfizer Inc.
    Inventors: Robert G. K. Donald, Annaliesa Sybil Anderson, Laurent Oliver Chorro, Jianxin Gu, Jin-Hwan Kim, Srinivas Kodali, Jason Arnold Lotvin, Justin Keith Moran, Rosalind Pan, Avvari Krishna Prasad, Mark Edward Ruppen, Suddham Singh, Ling Chu, Scott Ellis Lomberk, Karen Kiyoko Takane, Nishith Merchant, Wei Chen
  • Publication number: 20240350608
    Abstract: The present invention relates to new immunogenic compositions comprising conjugated Streptococcus pneumoniae capsular saccharide antigens (glycoconjugates), kits comprising said immunogenic compositions and uses thereof. Immunogenic compositions of the present invention will typically comprise at least one glycoconjugate from a S. pneumoniae serotype not found in PREVNAR®, SYNFLORIX® and/or PREVNAR 13®. The invention also relates to vaccination of human subjects, in particular infants and elderly, against pneumococcal infections using said novel immunogenic compositions.
    Type: Application
    Filed: April 12, 2024
    Publication date: October 24, 2024
    Inventors: Bishwa Raj Bhetuwal, Kaushik Dutta, Jianxin Gu, Sunayana Kapil, Jin-Hwan Kim, Justin Keith Moran, Suddham Singh, YuYing Yang
  • Publication number: 20240325515
    Abstract: The present invention relates to new immunogenic compositions comprising conjugated Streptococcus pneumoniae capsular saccharide antigens (glycoconjugates), kits comprising said immunogenic compositions and uses thereof. Immunogenic compositions of the present invention will typically comprise at least one glycoconjugate from a S. pneumoniae serotype not found in PREVNAR®, SYNFLORIX® and/or PREVNAR 13®. The invention also relates to vaccination of human subjects, in particular infants and elderly, against pneumococcal infections using said novel immunogenic compositions.
    Type: Application
    Filed: March 29, 2024
    Publication date: October 3, 2024
    Inventors: Kaushik Dutta, Caitlyn Gallagher, Isis Kanevsky, Jin-hwan Kim, Justin Keith Moran, Suddham Singh, Abhishek Ravindra Vartak
  • Publication number: 20240181028
    Abstract: The present invention relates to new immunogenic compositions comprising conjugated Streptococcus pneumoniae capsular saccharide antigens (glycoconjugates) and uses thereof. Immunogenic compositions of the present invention will typically comprise at least one glycoconjugate from a S. pneumoniae serotype not found in Prevnar, Synflorix and/or Prevnar 13. The invention also relates to vaccination of human subjects, in particular infants and elderly, against pneumoccocal infections using said novel immunogenic compositions.
    Type: Application
    Filed: November 20, 2023
    Publication date: June 6, 2024
    Inventors: Catherine Alex, Annaliesa Sybil Anderson, Bishwa Raj Bhetuwal, Zecheng Chen, Kaushik Dutta, Caitlyn Gallagher, Jianxin Gu, Isis Kanevsky, Jin-Hwan Kim, Justin Keith Moran, Suddham Singh, Naveen Surendran, Abhishek Ravindra Vartak, YuYing Yang
  • Publication number: 20230346903
    Abstract: The invention relates to immunogenic polysaccharide-protein conjugates comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B streptococcus (GBS), and a carrier protein, wherein the CP is selected from the group consisting of serotypes Ia, Ib, II, III, IV, V, VI, VII, VIII, and IX, and wherein the CP has a sialic acid level of greater than about 60%. The invention also relates to methods of making the conjugates and immunogenic compositions comprising the conjugates. The invention also relates to immunogenic compositions comprising polysaccharide-protein conjugates, wherein the conjugates comprise a CP from GBS serotype IV and at least one additional serotype. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.
    Type: Application
    Filed: December 1, 2022
    Publication date: November 2, 2023
    Applicant: Pfizer Inc.
    Inventors: Annaliesa Sybil Anderson, Amardeep Singh Bhupender Bhalla, Robert G.K. Donald, Jianxin Gu, Kathrin Ute Jansen, Rajesh Kumar Kainthan, Lakshmi Khandke, Jin-Hwan Kim, Paul Liberator, Avvari Krishna Prasad, Mark Edward Ruppen, Ingrid Lea Scully, Suddham Singh, Cindy Xudong Yang
  • Publication number: 20230000966
    Abstract: In one aspect, the invention relates to a polypeptide derived from E. coli and a fragment thereof, including compositions and methods thereof. Also disclosed herein are compositions that include a polypeptide derived from E. coli and a fragment thereof; and modified O-polysaccharide molecules derived from E. coli lipopolysaccharides and conjugates thereof. In a further aspect, disclosed herein are mammalian host cells that include sequence(s) encoding a polypeptide derived from E. coli or fragments thereof.
    Type: Application
    Filed: October 28, 2020
    Publication date: January 5, 2023
    Inventors: Annaliesa Sybil Anderson, Ye Che, Wei Chen, Laurent Oliver Chorro, Ling Chu, Robert G.K. Donald, Matthew Curtis Griffor, Jianxin Gu, Zeqiang Guan, Jin-Hwan Kim, Srinivas Kodali, Scott Ellis Lomberk, Jason Arnold Lotvin, Nishith Merchant, Justin Keith Moran, Rosalind Pan, Avvari Krishna Prasad, Mark Edward Ruppen, Suddham Singh, David Robert Stead, Karen Kiyoko Takane
  • Publication number: 20220387613
    Abstract: The present invention relates to new conjugated capsular saccharide antigens (glycoconjugates), immunogenic compositions comprising said glycoconjugates and uses thereof.
    Type: Application
    Filed: May 25, 2022
    Publication date: December 8, 2022
    Inventors: Annaliesa Sybil Anderson, Caitlyn Gallagher, Jianxin Gu, Isis Kanevsky, Jin-Hwan Kim, Justin Keith Moran, Suddham Singh, Naveen Surendran
  • Publication number: 20220387576
    Abstract: The present invention relates to new conjugated capsular saccharide antigens (glycoconjugates), immunogenic compositions comprising said glycoconjugates and uses thereof.
    Type: Application
    Filed: May 25, 2022
    Publication date: December 8, 2022
    Inventors: Annaliesa Sybil Anderson, Caitlyn Gallagher, Jianxin Gu, Isis Kanevsky, Jin-Hwan Kim, Justin Keith Moran, Suddham Singh, Naveen Surendran
  • Publication number: 20220168410
    Abstract: In one aspect, the invention relates to an immunogenic composition comprising modified O-polysaccharide molecules derived from E. coli lipopolysaccharides and conjugates thereof. Multivalent vaccines may be prepared by combining two or more monovalent immunogenic compositions for different E. coli serotypes. In one embodiment, the modified O-polysaccharide molecules are produced by a recombinant bacterium that includes a wzz gene.
    Type: Application
    Filed: February 15, 2022
    Publication date: June 2, 2022
    Applicant: Pfizer Inc.
    Inventors: Robert G.K. Donald, Annaliesa Sybil Anderson, Laurent Oliver Chorro, Jianxin Gu, Jin-Hwan Kim, Srinivas Kodali, Jason Arnold Lotvin, Justin Keith Moran, Rosalind Pan, Avvari Krishna Prasad, Mark Edward Ruppen, Suddham Singh, Ling Chu, Scott Ellis Lomberk, Karen Kiyoko Takane, Nishith Merchant, Wei Chen
  • Patent number: 11260119
    Abstract: In one aspect, the invention relates to an immunogenic composition comprising modified O-polysaccharide molecules derived from E. coli lipopolysaccharides and conjugates thereof. Multivalent vaccines may be prepared by combining two or more monovalent immunogenic compositions for different E. coli serotypes. In one embodiment, the modified O-polysaccharide molecules are produced by a recombinant bacterium that includes a wzz gene.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: March 1, 2022
    Assignee: Pfizer Inc.
    Inventors: Robert G. K. Donald, Annaliesa Sybil Anderson, Laurent Oliver Chorro, Jianxin Gu, Jin-Hwan Kim, Srinivas Kodali, Jason Arnold Lotvin, Justin Keith Moran, Rosalind Pan, Avvari Krishna Prasad, Mark Edward Ruppen, Suddham Singh, Ling Chu, Scott Ellis Lomberk, Karen Kiyoko Takane, Nishith Merchant, Wei Chen
  • Publication number: 20220016229
    Abstract: The present invention relates to new glycoconjugates comprising Streptococcus pneumoniae capsular saccharide antigens and uses thereof. Glycoconjugates of the present invention will typically comprise 2 or more saccharides antigens conjugated to the same molecule of the protein carrier. The invention also relates to vaccination of human subjects, in particular infants and elderly, against pneumoccocal infections using immunogenic compositions comprising said novel glycoconjugates.
    Type: Application
    Filed: December 9, 2019
    Publication date: January 20, 2022
    Applicant: Pfizer Inc.
    Inventors: Avvari Krishna Prasad, Jianxin Gu, Jin-Hwan Kim, Suddham Singh
  • Publication number: 20210145957
    Abstract: The invention relates to immunogenic polysaccharide-protein conjugates comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B. streptococcus (GBS), and a carrier protein, wherein the CP is selected from the group consisting of serotypes Ia, Ib, II, III, IV, V, VI, VII, VIII, and IX, and wherein the CP has a sialic acid level of greater than about 60%. The invention also relates to methods of making the conjugates and immunogenic compositions comprising the conjugates. The invention also relates to immunogenic compositions comprising polysaccharide-protein conjugates, wherein the conjugates comprise a CP from GBS serotype IV and at least one additional serotype. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.
    Type: Application
    Filed: January 28, 2021
    Publication date: May 20, 2021
    Applicant: Pfizer Inc.
    Inventors: Annaliesa Sybil Anderson, Amardeep Singh Bhupender Bhalla, Robert G.K. Donald, Jianxin Gu, Kathrin Ute Jansen, Rajesh Kumar Kainthan, Lakshmi Khandke, Jin-Hwan Kim, Paul Liberator, Avvari Krishna Prasad, Mark Edward Ruppen, Ingrid Lea Scully, Suddham Singh, Cindy Xudong Yang
  • Patent number: 10946086
    Abstract: The invention relates to immunogenic polysaccharide-protein conjugates comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B streptococcus (GBS), and a carrier protein, wherein the CP is selected from the group consisting of serotypes Ia, Ib, II, III, IV, V, VI, VII, VIII, and IX, and wherein the CP has a sialic acid level of greater than about 60%. The invention also relates to methods of making the conjugates and immunogenic compositions comprising the conjugates. The invention also relates to immunogenic compositions comprising polysaccharide-protein conjugates, wherein the conjugates comprise a CP from GBS serotype IV and at least one additional serotype. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: March 16, 2021
    Assignee: Pfizer Inc.
    Inventors: Annaliesa Sybil Anderson, Amardeep Singh Bhupender Bhalla, Robert G. K. Donald, Jianxin Gu, Kathrin Ute Jansen, Rajesh Kumar Kainthan, Lakshmi Khandke, Jin-Hwan Kim, Paul Liberator, Avvari Krishna Prasad, Mark Edward Ruppen, Ingrid Lea Scully, Suddham Singh, Cindy Xudong Yang
  • Publication number: 20200061177
    Abstract: In one aspect, the invention relates to an immunogenic composition comprising modified O-polysaccharide molecules derived from E. coli lipopolysaccharides and conjugates thereof. Multivalent vaccines may be prepared by combining two or more monovalent immunogenic compositions for different E. coli serotypes. In one embodiment, the modified O-polysaccharide molecules are produced by a recombinant bacterium that includes a wzz gene.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 27, 2020
    Inventors: Robert G.K. Donald, Annaliesa Sybil Anderson, Laurent Oliver Chorro, Jianxin Gu, Jin-Hwan Kim, Srinivas Kodali, Jason Arnold Lotvin, Justin Keith Moran, Rosalind Pan, Avvari Krishna Prasad, Mark Edward Ruppen, Suddham Singh, Ling Chu, Scott Ellis Lomberk, Karen Kiyoko Takane, Nishith Merchant, Wei Chen
  • Publication number: 20190142922
    Abstract: The invention relates to immunogenic polysaccharide-protein conjugates comprising a capsular polysaccharide (CP) from Streptococcus agalactiae, commonly referred to as group B streptococcus (GBS), and a carrier protein, wherein the CP is selected from the group consisting of serotypes Ia, Ib, II, III, IV, V, VI, VII, VIII, and IX, and wherein the CP has a sialic acid level of greater than about 60%. The invention also relates to methods of making the conjugates and immunogenic compositions comprising the conjugates. The invention also relates to immunogenic compositions comprising polysaccharide-protein conjugates, wherein the conjugates comprise a CP from GBS serotype IV and at least one additional serotype. The invention further relates to methods for inducing an immune response in subjects against GBS and/or for reducing or preventing invasive GBS disease in subjects using the compositions disclosed herein. The resulting antibodies can be used to treat or prevent GBS infection via passive immunotherapy.
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Inventors: Annaliesa Sybil Anderson, Amardeep Singh Bhupender Bhalla, Robert G.K. Donald, Jianxin Gu, Kathrin Ute Jansen, Rajesh Kumar Kainthan, Lakshmi Khandke, Jin-Hwan Kim, Paul Liberator, Avvari Krishna Prasad, Mark Edward Ruppen, Ingrid Lea Scully, Suddham Singh, Cindy Xudong Yang