Patents by Inventor David A. Sack

David A. Sack 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: 11684661
    Abstract: Provided herein are polypeptides comprising up to 9 antigenic elements of ETEC virulence determinants: 7 CFA adhesins [CFA/I, CFA/II (CS1, CS2, CS3), CFA/IV (CS4, CS5, CS6)] expressed by the most prevalent and virulent ETEC strains, and 2 toxins expressed by all ETEC strains, were genetically fused together for CFA-toxoid fusion with proteins (CFA/I/II/IV-STatoxoid-LTtoxoid). Methods for making these polypeptides and their use in the treatment of ETEC related disease are also provided.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: June 27, 2023
    Assignees: The Johns Hopkins University, South Dakota State University
    Inventors: David A. Sack, Weiping Zhang
  • Patent number: 11400146
    Abstract: Provided herein are polypeptides comprising up to 9 antigenic elements of ETEC virulence determinants: 7 CFA adhesins [CFA/I, CFA/II (CS1, CS2, CS3), CFA/IV (CS4, CS5, CS6)] expressed by the most prevalent and virulent ETEC strains, and 2 toxins expressed by all ETEC strains, were genetically fused together for CFA-toxoid fusion with proteins (CFA/I/II/IV-STa-toxoid-LTtoxoid). Methods for making these polypeptides and their use in the treatment of ETEC related disease are also provided.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: August 2, 2022
    Assignees: The Johns Hopkins University, South Dakota State University
    Inventors: David A. Sack, Weiping Zhang
  • Publication number: 20200353063
    Abstract: Provided herein are polypeptides comprising up to 9 antigenic elements of ETEC virulence determinants: 7 CFA adhesins [CFA/I, CFA/II (CS1, CS2, CS3), CFA/IV (CS4, CS5, CS6)] expressed by the most prevalent and virulent ETEC strains, and 2 toxins expressed by all ETEC strains, were genetically fused together for CFA-toxoid fusion with proteins (CFA/I/II/IV-STa-toxoid-LTtoxoid). Methods for making these polypeptides and their use in the treatment of ETEC related disease are also provided.
    Type: Application
    Filed: May 7, 2020
    Publication date: November 12, 2020
    Inventors: David A. Sack, Weiping Zhang
  • Publication number: 20200306354
    Abstract: Provided herein are polypeptides comprising up to 9 antigenic elements of ETEC virulence determinants: 7 CFA adhesins [CFA/I, CFA/II (CS1, CS2, CS3), CFA/IV (CS4, CS5, CS6)] expressed by the most prevalent and virulent ETEC strains, and 2 toxins expressed by all ETEC strains, were genetically fused together for CFA-toxoid fusion with proteins (CFA/I/II/IV-STatoxoid-LTtoxoid). Methods for making these polypeptides and their use in the treatment of ETEC related disease are also provided.
    Type: Application
    Filed: April 27, 2020
    Publication date: October 1, 2020
    Inventors: David A. Sack, Weiping Zhang
  • Patent number: 10646560
    Abstract: Provided herein are polypeptides comprising up to 9 antigenic elements of ETEC virulence determinants: 7 CFA adhesins [CFA/I, CFA/II (CS1, CS2, CS3), CFA/IV (CS4, CS5, CS6)] expressed by the most prevalent and virulent ETEC strains, and 2 toxins expressed by all ETEC strains, were genetically fused together for CFA-toxoid fusion with proteins (CFA/I/II/IV-STa-toxoidLTtoxoid). Methods for making these polypeptides and their use in the treatment of ETEC related disease are also provided.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 12, 2020
    Assignees: The John Hopkins University, South Dakota State University
    Inventors: David A. Sack, Weiping Zhang
  • Publication number: 20160317638
    Abstract: Provided herein are polypeptides comprising up to 9 antigenic elements of ETEC virulence determinants: 7 CFA adhesins [CFA/I, CFA/II (CS1, CS2, CS3), CFA/IV (CS4, CS5, CS6)] expressed by the most prevalent and virulent ETEC strains, and 2 toxins expressed by all ETEC strains, were genetically fused together for CFA-toxoid fusion with proteins (CFA/I/II/IV-STa-toxoidLTtoxoid). Methods for making these polypeptides and their use in the treatment of ETEC related disease are also provided.
    Type: Application
    Filed: December 17, 2014
    Publication date: November 3, 2016
    Inventors: David A. Sack, Weiping Zhang
  • Patent number: 7638271
    Abstract: A method and kit for the detection of an infectious disease, particularly tuberculosis, wherein lymphocytes of a subject are incubated with a disease-specific antigen, and the level of antibody production is measured, the production of antibodies above a baseline level being indicative of infection.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: December 29, 2009
    Assignee: ICDDR, B: The Center for Health and Population Research
    Inventors: David A. Sack, Rubhana Raquib
  • Publication number: 20030194448
    Abstract: A rehydration composition and oral delivery system is provided that allows for enhanced functional ingredient delivery when ingested orally as a water based solution. The rehydration composition comprises a low fiber colloidal hydrolyzed rice carbohydrate ingredient having, on a dry weight basis, less than 0.1% fiber and between 0.5% and 1.0% protein and between 0-0.5% and 1.0% fat, and having a dextrose equivalency (DE) value within the approximate range of 20-30 (commonly DE 25), and electrolytes such as sodium, potassium, citrate, and/or bicarbonate. The rehydration composition, which is concentrated or dried, becomes an oral rehydration solution (ORS) when mixed with water for oral consumption. The rehydration composition, when mixed with active ingredients such as vaccines, drugs, amino acids, mineral salts, vitamins, nutraceuticals, probiotics, prebiotics, flavors, or nutritive or non-nutritive sweeteners, is referred to as an oral delivery system.
    Type: Application
    Filed: April 16, 2002
    Publication date: October 16, 2003
    Inventors: Cheryl R. Mitchell, Charlene B. Riikonene, David A. Sack
  • Patent number: 5741680
    Abstract: This invention provides for a composition base and method of formulation to allow for oral vaccine delivery. The composition base is mixed with the oral vaccine and includes a carbohydrate composition having a dextrose equivalency value within the approximate range of 35-50. The buffer composition includes an electrolyte composition blended with the carbohydrate composition and the blended carbohydrate and electrolyte compositions are mixed each with respect to the other and then with the vaccine for oral ingestion by a user.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: April 21, 1998
    Assignee: Cera Products, Inc.
    Inventor: David A. Sack
  • Patent number: 4548805
    Abstract: A non-invasive method for determining gastric acidity in humans, using oral magnesium metal powder while measuring the hydrogen gas response in exhaled breath and belches. The magnesium reacts with hydrochloric acid in the stomach liberating hydrogen and the magnitude of the hydrogen released is correlated with the amount of gastric acid produced.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: October 22, 1985
    Inventors: David A. Sack, Charles B. Stephensen