Patents by Inventor Blaine Pfeifer

Blaine Pfeifer 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: 11541110
    Abstract: Provided are vaccine compositions and methods against Streptococcus pneumoniae. The composition comprises liposomes which have polysaccharides from one or more serotypes and have proteins non-covalently attached to the surface and exposed to the exterior.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: January 3, 2023
    Assignee: The Research Foundation for The State University of New York
    Inventors: Blaine Pfeifer, Charles Jones
  • Publication number: 20210393763
    Abstract: Immunogenic composition are provided comprising PnCo and/or GlpO polypeptides identified as being preferentially expressed during the virulent phase of an infection related to streptococcal bacteria. The compositions can be used for eliciting immune response against streptococcal infections, such as against infections caused by S. pneumoniae.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 23, 2021
    Inventors: Blaine PFEIFER, Charles JONES, Jonathan LOVELL
  • Patent number: 11103568
    Abstract: Immunogenic composition are provided comprising PnCo and/or GlpO polypeptides identified as being preferentially expressed during the virulent phase of an infection related to streptococcal bacteria. The compositions can be used for eliciting immune response against streptococcal infections, such as against infections caused by S. pneumoniae.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: August 31, 2021
    Assignee: The Research Foundation for The State University of New York
    Inventors: Blaine Pfeifer, Charles Jones, Jonathan Lovell
  • Publication number: 20200376108
    Abstract: Provided are vaccine compositions and methods against Streptococcus pneumoniae. The composition comprises liposomes which have polysaccharides from one or more serotypes and have proteins non-covalently attached to the surface and exposed to the exterior.
    Type: Application
    Filed: October 12, 2018
    Publication date: December 3, 2020
    Inventors: Blaine PFEIFER, Charles JONES
  • Publication number: 20190307873
    Abstract: Immunogenic composition are provided comprising PnCo and/or GlpO polypeptides identified as being preferentially expressed during the virulent phase of an infection related to streptococcal bacteria. The compositions can be used for eliciting immune response against streptococcal infections, such as against infections caused by S. pneumoniae.
    Type: Application
    Filed: April 5, 2017
    Publication date: October 10, 2019
    Inventors: Blaine PFEIFER, Charles JONES, Jonathan LOVELL
  • Publication number: 20180065940
    Abstract: Provided are Ybt analogs and derivatives thereof and compositions comprising Ybt and Ybt analogs and derivatives thereof. Methods of making Ybt and Ybt analogs and methods of using Ybt and Ybt analogs are also provided. The methods use microbes modified to produce Ybt and Ybt analogs. The compounds and compositions can be used to remove metals from metal containing samples.
    Type: Application
    Filed: March 21, 2016
    Publication date: March 8, 2018
    Inventors: Blaine PFEIFER, Mahmoud AHMADI
  • Publication number: 20170348402
    Abstract: It has been established that bacterial hybrid vectors including prokaryote cells modified by the addition of cationic polymers to the outer surface of the cell can selectively deliver exogenous cargos, such as nucleic acids, polypeptides and small molecules to an eukaryotic cell, such as an antigen presenting cell. Compositions and methods for the delivery and expression of nucleic acids and polypeptides to eukaryotic cells are described. The bacterial hybrid vectors include one or more cationic polymers that enhance uptake by antigen presenting cells. The hybrid bacterial vectors include expression vectors that express one or more factors to enhance lysosomal escape and cytosolic delivery of cargo. The vectors are useful as adjuvants to stimulate and/or induce immune responses to any desired antigen, to develop a protective immune response in a subject.
    Type: Application
    Filed: July 30, 2015
    Publication date: December 7, 2017
    Inventors: Blaine A. Pfeifer, Charles Jones
  • Publication number: 20150197778
    Abstract: A recombinant E. coli cell including nucleic acid sequences that encode phosphatidic acid phosphatase (PGP) and diacylglycerol acyltransferase (DGAT). Upon expression of the PGP and DGAT, the cell produces a triglyceride having a C16 acyl chain. Also provided is a method for producing triglycerides by culturing the recombinant E. coli cell.
    Type: Application
    Filed: April 11, 2013
    Publication date: July 16, 2015
    Inventors: Kyongbum Lee, Joanna Rucker, Julie Paul, Blaine Pfeifer
  • Publication number: 20110262971
    Abstract: Genetically modified E. coli strains capable of producing erythromycins, particularly erythromycin A.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 27, 2011
    Applicant: Tufts University
    Inventors: Blaine Pfeifer, Haoran Zhang
  • Publication number: 20100261168
    Abstract: A screening method for identifying microbial genes involved in biosynthesis of therapeutic terpenoid-based compounds using genetically modified E. coli strains that yield high levels of products of the non-mevalonate 1-deoxy-D-xylulose-5-phosphate pathway.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 14, 2010
    Inventors: Blaine Pfeifer, Yong Wang
  • Patent number: 6939691
    Abstract: The use of enzymes that catalyze the production of starter and extender units for polyketides in E. coli and Streptomyces is described; these enzymes include malonyl CoA decarboxylase (MatA), malonyl CoA synthetase (MatB), and a malonate transporter (MatC) as well as proprionyl CoA carboxylase (pcc). The matBC gene from Streptomyces coelicolor, the matABC genes from Rhizobium trifoli, and the pccB and accA2 from Streptomyces coelicolor are useful in specific embodiments of the claimed invention. These enzymes may be used to enhance the yield of polyketides that are natively produced or polyketides that are rationally designed. By using these techniques, the synthesis of a complete polyketide has been achieved in E. coli in the presence of a phosphopantetheinyl transferase, such as sfp from Bacillus subtilis. This achievement permits a host organism with desirable characteristics to be used in the production of such polyketides and to assess the results of gene shuffling.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: September 6, 2005
    Assignee: Board of Trustees of the Leland Stanford Junior University
    Inventors: Chaitan Khosla, Blaine Pfeifer
  • Publication number: 20020192767
    Abstract: The use of enzymes which catalyze the production of starter and extender units for polyketides is described. In addition, modified loading modules are described, which can accept a variety of starting units such as substituted benzoates, and which can be used to generate substituted derivatives of natural products. These enzymes may be used to enhance the yield of polyketides that are natively produced or polyketides that are rationally designed. By using these techniques, the synthesis of a complete polyketide has been achieved in E. coli. Production can be enhanced in microbial organisms of polyketides and other secondary metabolites by delaying production until after exponential phase and by maintaining relatively constant nutrient levels in the medium. In addition, polyketide production can be enhanced by providing an expression system for a thioesterase II. Thus, by modifying the host organism and changing the culture conditions, synthesis of a secondary metabolite can be enhanced.
    Type: Application
    Filed: February 28, 2002
    Publication date: December 19, 2002
    Inventors: Chaitan Khosla, Blaine Pfeifer
  • Publication number: 20020045220
    Abstract: The use of enzymes which catalyze the production of starter and extender units for polyketides is described. In addition, modified loading modules are described, which can accept a variety of starting units such as substituted benzoates, and which can be used to generate substituted derivatives of natural products. These enzymes may be used to enhance the yield of polyketides that are natively produced or polyketides that are rationally designed. By using these techniques, the synthesis of a complete polyketide has been achieved in E. col. This achievement permits a host organism with desirable characteristics to be used in the production of such polyketides and to assess the results of gene shuffling.
    Type: Application
    Filed: February 28, 2001
    Publication date: April 18, 2002
    Inventors: Chaitan Khosla, Blaine Pfeifer