Patents by Inventor Vladimír A. Král

Vladimír A. Král 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: 7122572
    Abstract: The present invention provides calixpyrrole, calixpyridinopyrrole, and calixpyridine macrocycles, having 4, 5, 6, 7, or 8 heterocyclic rings, as well as syntheses, derivatives, conjugates, multimers, and solid supports thereof. Such macrocycles have proved to be effective and selective ion- and neutral molecule-binding agents forming supramolecular ensembles, and ion- and neutral molecule-separation agents. The macrocycles are fully meso-non-hydrogen-substituted porphyrinogens, a few molecules of which were previously known but not recognized as possessing anion- or molecule-binding properties. The binding mode is noncovalent, primarily that of hydrogen-bonding, thereby providing a new mode for liquid chromatography, that of Hydrogen Bonding Liquid Chromatography. Further useful applications of the macrocycles provided herein include environmental remediation by removal of undesired ions or neutral molecules, and removal of phosphate for kidney dialysis.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: October 17, 2006
    Assignee: Board of Regents, University of Texas System
    Inventors: Philip A. Gale, Jonathan L. Sessler, Vladimír A. Král, Andrei Andrievsky, Vincent Lynch, Petra I. Sansom, William E. Allen, Christopher T. Brown, Andreas Gebauer
  • Publication number: 20020026047
    Abstract: The present invention provides calixpyrrole, calixpyridinopyrrole, and calixpyridine macrocycles, having 4, 5, 6, 7, or 8 heterocyclic rings, as well as syntheses, derivatives. conjugates, multimers, and solid supports thereof. Such macrocycles have proved to be effective and selective ion- and neutral molecule-binding agents forming supramolecular ensembles, and ion- and neutral molecule-separation agents. The macrocycles are fully meso-non-hydrogen-substituted porphyrinogens, a few molecules of which were previously known but not recognized as possessing anion- or molecule-binding properties. The binding mode is noncovalent, primarily that of hydrogen-bonding, thereby providing a new mode for liquid chromatography, that of Hydrogen Bonding Liquid Chromatography. Further useful applications of the macrocycles provided herein include environmental remediation by removal of undesired ions or neutral molecules, and removal of phosphate for kidney dialysis.
    Type: Application
    Filed: April 20, 2001
    Publication date: February 28, 2002
    Inventors: Philip A. Gale, Jonathan L. Sessler, John W. Genge, Vladimir A. Kral, Andrei Andrievsky, Vincent Lynch, Petra I. Sansom, William E. Allen, Christopher T. Brown, Andreas Gebauer
  • Patent number: 6262257
    Abstract: The present invention provides calixpyrrole, calixpyridinopyrrole, and calixpyridine macrocycles, having 4, 5, 6, 7, or 8 heterocyclic rings, as well as syntheses, derivatives, conjugates, multimers, and solid supports thereof. Such macrocycles have proved to be effective and selective ion- and neutral molecule-binding agents forming supramolecular ensembles, and ion- and neutral molecule-separation agents. The macrocycles are fully meso-non-hydrogen-substituted porphyrinogens, a few molecules of which were previously known but not recognized as possessing anion- or molecule-binding properties. The binding mode is noncovalent, primarily that of hydrogen-bonding, thereby providing a new mode for liquid chromatography, that of Hydrogen Bonding Liquid Chromatography. Further useful applications of the macrocycles provided herein include environmental remediation by removal of undesired ions or neutral molecules, and removal of phosphate for kidney dialysis.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: July 17, 2001
    Assignee: Board of Regents, University of Texas System
    Inventors: Philip A. Gale, Jonathan L. Sessler, John W. Genge, Vladimír A. Král, Andrei Andrievsky, Vincent Lynch, Petra I. Sansom, William E. Allen, Christopher T. Brown, Andreas Gebauer
  • Patent number: 5969111
    Abstract: Texaphyrins substituted with imidazda are provided.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: October 19, 1999
    Assignees: Board of Regents, The University of Texas System, Pharmacyclics, Inc.
    Inventors: Jonathan L. Sessler, Gregory W. Hemmi, Tarak D. Mody, Darren Magda, Vladimir A. Kral
  • Patent number: 5955586
    Abstract: The present invention is directed to highly boronated derivatives of expanded porphyrins including sapphyrins and texaphyrins, and more particularly to expanded porphyrins substituted with carborane clusters. Such compositions are useful in boron neutron capture therapy, radiation therapy, photodynamic therapy, and other applications.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: September 21, 1999
    Inventors: Jonathan L. Sessler, William E. Allen, Vladimir A. Kral
  • Patent number: 5801229
    Abstract: Texaphyrins are provided for use as radiation sensitizers. Advantageous properties of texaphyrins for use as a radiation sensitizer include: i) a low redox potential which allows radiation-induced hydrated electrons to flow to texaphyrin rather than neutralizing hydroxyl radicals, allowing hydroxyl radicals to cause cellular damage, ii) a relatively stable texaphyrin radical that reacts readily to covalently modify neighboring molecules causing further cellular damage, iii) intrinsic biolocalization, and iv) indifference to the presence or absence of O.sub.2. These properties allow texaphyrins to be particularly effective for treating the hypoxic areas of solid neoplasms. Methods of treatment for an individual having a neoplasm or atheroma include the use of a texaphyrin as a radiation sensitizer and as an agent for photodynamic tumor therapy, or the use of a texaphyrin for internal and for external ionizing radiation. Novel texaphyrins are provided.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: September 1, 1998
    Assignee: The Board of Regents, University of Texas System
    Inventors: Jonathan L. Sessler, Tarak D. Mody, Gregory W. Hemmi, Vladimir A. Kral
  • Patent number: 5583220
    Abstract: Texaphyrins are provided for use as radiation sensitizers. Advantageous properties of texaphyrins for use as a radiation sensitizer include: i) a low redox potential which allows radiation-induced hydrated electrons to flow to texaphyrin rather than neutralizing hydroxyl radicals, allowing hydroxyl radicals to cause cellular damage, ii) a relatively stable texaphyrin radical that reacts readily to covalently modify neighboring molecules causing further cellular damage, iii) intrinsic biolocalization, and iv) indifference to the presence or absence of O.sub.2. These properties allow texaphyrins to be particularly effective for treating the hypoxic areas of solid neoplasms. Methods of treatment for an individual having a neoplasm or atheroma include the use of a texaphyrin as a radiation sensitizer and as an agent for photodynamic tumor therapy, or the use of a texaphyrin for internal and for external ionizing radiation. Novel texaphyrins are provided.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: December 10, 1996
    Assignees: Pharmacyclics, Inc., Board of Trustees, Univ. of TX Sys.
    Inventors: Jonathan L. Sessler, Anthony M. Harriman, Richard A. Miller, Tarak D. Mody, Gregory W. Hemmi, Vladimir A. Kral, Darren Magda