Patents by Inventor Pavol Kovac

Pavol Kovac 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: 11551832
    Abstract: The sheath (3) is a material, which includes an aluminium (Al) matrix, in which nanometric aluminium oxide particles (Al2O3) are homogenously dispersed, the content of Al2O3 is 0.25 to 5 vol. % and the balance is Al. It is preferred that Al2O3 originates from the surface layer present on Al powder used as feedstock material for consolidation. The superconductor based on magnesium diboride (MgB2) core (1) is fabricated by powder-in-tube or internal magnesium diffusion to boron technology, while the tube is the Al+Al2O3 composite, which is a product of powder metallurgy. A loose Al powder is pressed by cold isostatic pressing, and then the powder billet is degassed at elevated temperature and under vacuum, and then is hot extruded into a tube. A thin diffusion barrier (2) tube filled up with a mixture of Mg and B powders or Mg wire surrounded with B powder is placed into the Al+Al2O3 composite tube under inert gas or vacuum. Such composite unit is cold worked into a thin wire and then annealed at 625-655° C.
    Type: Grant
    Filed: May 19, 2018
    Date of Patent: January 10, 2023
    Assignees: USTAV MATERIALOV A MECHANIKY STROJOV SAV, ELEKTROTECHNICKY USTAV SAV
    Inventors: Martin Balog, Peter Krizik, Pavol Kovac, Imrich Husek, Lubomir Kopera, Alica Rosova
  • Publication number: 20210090767
    Abstract: The sheath (3) is a material, which includes an aluminium (Al) matrix, in which nanometric aluminium oxide particles (Al2O3) are homogenously dispersed, the content of Al2O3 is 0.25 to 5 vol. % and the balance is Al. It is preferred that Al2O3 originates from the surface layer present on Al powder used as feedstock material for consolidation. The superconductor based on magnesium diboride (MgB2) core (1) is fabricated by powder-in-tube or internal magnesium diffusion to boron technology, while the tube is the Al+Al2O3 composite, which is a product of powder metallurgy. A loose Al powder is pressed by cold isostatic pressing, and then the powder billet is degassed at elevated temperature and under vacuum, and then is hot extruded into a tube. A thin diffusion barrier (2) tube filled up with a mixture of Mg and B powders or Mg wire surrounded with B powder is placed into the Al+Al2O3 composite tube under inert gas or vacuum. Such composite unit is cold worked into a thin wire and then annealed at 625-655° C.
    Type: Application
    Filed: May 19, 2018
    Publication date: March 25, 2021
    Applicants: USTAV MATERIALOV A MECHANIKY STROJOV SAV, ELEKTROTECHNICKY USTAV SAV
    Inventors: Martin BALOG, Peter KRIZIK, Pavol KOVAC, Imrich HUSEK, Lubomir KOPERA, Alica ROSOVA
  • Patent number: 9616139
    Abstract: The disclosure provides directly conjugated polysaccharide vaccine molecules and methods related thereto.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: April 11, 2017
    Assignees: The General Hospital Corporation, The United States, as represented by the secretary, Department of Health and Human Services, International Centre for Diarrhoeal Disease Research, Bangladesh
    Inventors: Edward T. Ryan, Pavol Kovac, Firdausi Qadri, Peng Xu, Stephen B. Calderwood, Willie Frank Vann, Dwight Christopher Peterson
  • Publication number: 20150265691
    Abstract: This invention provides a vaccine comprising (i) an anthrose-containing saccharide in an amount effective to enhance immunity against Bacillus anthracis in a subject and (ii) a pharmaceutically acceptable carrier. This invention provides a vaccine comprising (i) a conjugate of an anthrose-containing saccharide in an amount effective to enhance immunity against Bacillus anthracis in a subject, wherein the anthrose-containing saccharide is conjugated to a biomolecule via a linker, and (ii) a pharmaceutically acceptable carrier.
    Type: Application
    Filed: September 14, 2007
    Publication date: September 24, 2015
    Inventors: Denong Wang, Pavol Kovac, Lawrence Steinman, Gregory Carroll, Nicholas Turro, Jeffrey Koberstein, Rina Saksena, Roberto Adamo
  • Publication number: 20150031863
    Abstract: The disclosure provides directly conjugated polysaccharide vaccine molecules and methods related thereto.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 29, 2015
    Applicant: The General Hospital Corporation
    Inventors: Edward T. Ryan, Pavol Kovac, Firdausi Qadri, Peng Xu, Stephen B. Calderwood, Willie Frank Vann, Dwight Christopher Peterson
  • Patent number: 5952454
    Abstract: The present invention provides a method to couple a glycosyl donor to an amine-containing carrier or substrate material using as a spacer a compound of the general formula I: ##STR1## in which n and m are each independently an integer of from 1 to 12, R.sub.1 and R.sub.2 are each independently H, lower alkyl, a hydroxyl group, or a substituent which does not interfere with the linking reactions, R.sub.4 and R.sub.5 are each independently H, lower alkyl, a hydroxyl group, or a substituent which does not interfere with the linking reactions, R.sub.3 and R'.sub.3 are each independently an optionally substituted lower alkyl or R.sub.3 and R'.sub.3 can be joined to form an optionally substituted cyclic moiety having from 2 to 5 carbon atoms.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: September 14, 1999
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Pavol Kovac, Jian Zhang