Patents by Inventor A. Prasad

A. Prasad 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: 20070231340
    Abstract: An immunogenic composition having 13 distinct polysaccharide-protein conjugates and optionally, an aluminum-based adjuvant, is described. Each conjugate contains a capsular polysaccharide prepared from a different serotype of Streptococcus pneumoniae (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F) conjugated to a carrier protein. The immunogenic composition, formulated as a vaccine, increases coverage against pneumococcal disease in infants and young children globally, and provides coverage for serotypes 6A and 19A that is not dependent on the limitations of serogroup cross-protection. Also described is a method for making an immunogenic conjugate comprising Streptococcus pneumoniae serotype 3 polysaccharide covalently linked to a carrier protein, the method including periodic acid oxidation of the polysaccharide in the presence of bivalent cations.
    Type: Application
    Filed: December 22, 2006
    Publication date: October 4, 2007
    Applicant: Wyeth
    Inventors: William Hausdorff, George Siber, Peter Paradiso, A. Prasad
  • Publication number: 20070184072
    Abstract: An immunogenic composition having 13 distinct polysaccharide-protein conjugates and optionally, an aluminum-based adjuvant, is described. Each conjugate contains a capsular polysaccharide prepared from a different serotype of Streptococcus pneumoniae (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F) conjugated to a carrier protein. The immunogenic composition, formulated as a vaccine, increases coverage against pneumococcal disease in infants and young children globally, and provides coverage for serotypes 6A and 19A that is not dependent on the limitations of serogroup cross-protection. Also described is a method for making an immunogenic conjugate comprising Streptococcus pneumoniae serotype 1 polysaccharide covalently linked to a carrier protein, the method including partial de-O-acetylation of the polysaccharide by mild hydrolysis in an alkaline pH buffer.
    Type: Application
    Filed: December 22, 2006
    Publication date: August 9, 2007
    Applicant: Wyeth
    Inventors: William Hausdorff, George Siber, Peter Paradiso, A. Prasad
  • Publication number: 20070184071
    Abstract: An immunogenic composition having 13 distinct polysaccharide-protein conjugates and optionally, an aluminum-based adjuvant, is described. Each conjugate contains a capsular polysaccharide prepared from a different serotype of Streptococcus pneumoniae (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F) conjugated to a carrier protein. The immunogenic composition, formulated as a vaccine, increases coverage against pneumococcal disease in infants and young children globally, and provides coverage for serotypes 6A and 19A that is not dependent on the limitations of serogroup cross-protection. Methods for making an immunogenic conjugate comprising Streptococcus pneumoniae serotype 19A polysaccharide are also provided in which the serotype 19A polysaccharide is co-lyophilized with a carrier protein and conjugation is carried out in dimethyl sulfoxide (DMSO) via a reductive amination mechanism.
    Type: Application
    Filed: December 22, 2006
    Publication date: August 9, 2007
    Applicant: Wyeth
    Inventors: William Hausdorff, George Siber, Peter Paradiso, A. Prasad
  • Publication number: 20070134762
    Abstract: The present invention is directed to methods of producing conjugates of peptide immunogens with protein/polypeptide carrier molecules, which are useful as immunogens, wherein peptide immunogens are conjugated to protein carriers via activated functional groups on amino acid residues of the carrier or of the optionally attached linker molecule, and wherein any unconjugated reactive functional groups on amino acid residues are inactivated via capping, thus retaining the immunological functionality of the carrier molecule, but reducing the propensity for undesirable reactions that could render the conjugate less safe or effective. Furthermore, the invention also relates to such immunogenic products and immunogenic compositions containing such immunogenic products made by such methods.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 14, 2007
    Inventors: Rasappa Arumugham, A. Prasad
  • Publication number: 20050203825
    Abstract: A method of processing financial articles of trade is provided. The method includes collecting real time data from a plurality of liquidity destinations in trading at least one of securities, commodities, options, futures and derivatives, the real time data including information on submitted transactions of financial articles of trade. The real time data collected from the plurality of liquidity destinations is aggregated. The real time data is streamed in a standardized form. User criteria are established to identify relevant portions of the streamed real time data. The streamed real time data is analyzed according to the user criteria. The analyzed real time data is consolidated into a computer data base.
    Type: Application
    Filed: September 30, 2004
    Publication date: September 15, 2005
    Inventors: Corby Angle, Douglas Kittelsen, Malcolm LaFever, Ted Myerson, A. Prasad