Patents by Inventor Paul B. Weisz

Paul B. Weisz 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: 5935940
    Abstract: Polyionic derivatives of cyclodextrins and methods for preparing these derivatives are provided in which a polyionic derivative of cyclodextrin is combined with a growth factor, preferably a heparin binding growth factor. These compositions are of low solubility and are applied directly to the location of a wound. By virtue of the low solubility, the compositions remain in place at the site of application and slowly release growth factor. In an alternative embodiment, the cyclodextrin derivatives are administered in the absence of growth factor and are used to absorb growth factor present in the body at the location of the wound in order to prevent overstimulation of the wound response.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: August 10, 1999
    Assignee: Trustees of the University of Pennsylvania
    Inventor: Paul B. Weisz
  • Patent number: 5902799
    Abstract: Polyionic derivatives of cyclodextrins and methods for preparing these derivatives are provided in which a polyionic derivative of cyclodextrin is combined with a growth factor, preferably a heparin binding growth factor. These compositions are of low solubility and are applied directly to the location of a wound. By virtue of the low solubility, the compositions remain in place at the site of application and slowly release growth factor. In an alternative embodiment, the cyclodextrin derivatives are administered in the absence of growth factor and are used to absorb growth factor present in the body at the location of the wound in order to prevent overstimulation of the wound response.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: May 11, 1999
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Howard C. Herrmann, Elliot Barnathan, Paul B. Weisz
  • Patent number: 5874419
    Abstract: Polyionic derivatives of cyclodextrins and methods for preparing these derivatives are provided in which a polyionic derivative of cyclodextrin is combined with a growth factor, preferably a heparin binding growth factor. These compositions are of low solubility and are applied directly to the location of a wound. By virtue of the low solubility, the compositions remain in place at the site of application and slowly release growth factor. In an alternative embodiment, the cyclodextrin derivatives are administered in the absence of growth factor and are used to absorb growth factor present in the body at the location of the wound in order to prevent overstimulation of the wound response.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: February 23, 1999
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Howard C. Herrmann, Elliot Barnathan, Paul B. Weisz
  • Patent number: 5846954
    Abstract: The present invention provides polyanionic, substituted CDs having cellular growth modulating-activity. The invention further provides CDs having anionic groups on one side of the CD molecule. Therapeutic methods for using, as well as methods of making the CD compounds of the invention, are also disclosed herein.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: December 8, 1998
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Madeleine M. Joullie, Paul B. Weisz
  • Patent number: 5843920
    Abstract: Anti-angiogenic protein composition can be prepared simply and efficiently by contacting cartilage particles containing the protein together with an electrolyte solution and an oligosaccharide bearing a minimum number of anionic substituents per sugar unit, to extract the anti-angiogenic protein from the cartilage particles and to form a complex of the oligosaccharide and the protein. The resultant anti-angiogenic complex can be used for therapeutic treatment of various angiogenic and related diseases.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: December 1, 1998
    Assignee: BioCell Technology, LLC
    Inventor: Paul B. Weisz
  • Patent number: 5840713
    Abstract: Disclosed are methods of therapy applicable to pathologies that involve loss of integrity of tissue and organ membranes that lead to abnormal permeation of proteinic and other agents and their elimination or penetration of other anatomical functions. Such deficiencies are associated directly or indirectly, for example, with inflammatory diseases, with diabetes and others. The therapeutic method involves administering to the membrane in need of treatment a therapeutic amount of an oligosaccharide, preferably a cyclic oligosaccharide, having up to about 10 sugar units per molecule and having at least 1.4 anionic substituents per sugar unit. The anionic substituents are preferably the residues of strong acids.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: November 24, 1998
    Inventor: Paul B. Weisz
  • Patent number: 5776914
    Abstract: Disclosed are compositions and methods for preventing or substantially inhibiting the hemolytic activity of hemolysis inducing agents. The methods and compositions are based on the use of an anionic oligosaccharide, such as polysulfated cyclodextrin, to achieve the desired reduction in hemolytic active inducing agents.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: July 7, 1998
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Paul B. Weisz, Edward J. Macarak
  • Patent number: 5760015
    Abstract: The present invention provides polyanionic, substituted CDs having cellular growth modulating activity. The invention further provides CDs having anionic groups on one side of the CD molecule. Therapeutic methods for using, as well as methods of making the CD compounds of the invention, are also disclosed herein.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: June 2, 1998
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Madeleine M. Joullie, Paul B. Weisz
  • Patent number: 5658894
    Abstract: Polyionic derivatives of cyclodextrins and methods for preparing these derivatives are provided in which a polyionic derivative of cyclodextrin is combined with a growth factor, preferably a heparin binding growth factor. These compositions are of low solubility and are applied directly to the location of a wound. By virtue of the low solubility, the compositions remain in place at the site of application and slowly release growth factor. In an alternative embodiment, the cyclodextrin derivatives are administered in the absence of growth factor and are used to absorb growth factor present in the body at the location of the wound in order to prevent overstimulation of the wound response.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: August 19, 1997
    Assignee: The Trustees of the University of Pennsylvania
    Inventor: Paul B. Weisz
  • Patent number: 5516766
    Abstract: Polyionic derivatives of cyclodextrin polymers and cyclodextrins immobilized on a solid surface are disclosed. Compositions and methods for separating a molecular species, including but not limited to a biologically active protein, from a mixture, for the storage of protein factors and for the therapeutic biodelivery of protein factors which employ the polyionic derivatives of cyclodextrin polymers and cyclodextrins immobilized on a solid surface are also disclosed.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: May 14, 1996
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Paul B. Weisz, Yuen W. Shing, Judah Folkman
  • Patent number: 5446030
    Abstract: Disclosed are compositions and methods for prevented or substantially inhibiting the hemolytic activity of hemolysis inducing agents. The methods and compositions are based on the use an anionic oligosaccharide, such as polysulfated cyclodextrin, to achieve the desired reduction in hemolytic active inducing agents.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: August 29, 1995
    Inventors: Paul B. Weisz, Edward J. Macarak
  • Patent number: 5441944
    Abstract: The invention relates to highly water soluble substituted .alpha.-, .beta.- or .gamma.-cyclodextrin sulfates associated with a physiologically acceptable cation. Pathological or otherwise undesirable cell or tissue growth in mammals, including humans, is inhibited by administering thereto (1) a water-soluble substituted cyclodextrin sulfate salt, together with (2) a growth-inhibiting organic compound. The growth-inhibiting compound (2) may be asteroid having no inhibiting effect in the absence of (1), or an organic compound which may be an active growth inhibitor, the action of which is potentiated by (1). The invention provides a method for inhibiting angiogenesis and controlling the growth of tumors as well as treating other diseases and pathological conditions associated with undesired cell or tissue growth, including angiogenesis.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: August 15, 1995
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Paul B. Weisz, William R. Ewing, Madeleine M. Joullie
  • Patent number: 5262404
    Abstract: Polyionic derivatives of cyclodextrin polymers and cyclodextrins immobilized on a solid surface are disclosed. Compositions and methods for separating a molecular species, including but not limited to a biologically active protein, from a mixture, for the storage of protein factors and for the therapeutic biodelivery of protein factors which employ the polyionic derivatives of cyclodextrin polymers and cyclodextrins immobilized on a solid surface are also disclosed.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: November 16, 1993
    Assignee: The Trustees of the University of Pennsylvania/Childrens Hospital Corporation
    Inventors: Paul B. Weisz, Yuen W. Shing
  • Patent number: 5183809
    Abstract: Polyionic derivatives of cyclodextrin polymers and cyclodextrins immobilized on a solid surface are disclosed. Compositions and methods for separating a molecular species, including but not limited to a biologically active protein, from a mixture, for the storage of protein factors and for the therapeutic biodelivery of protein factors which employ the polyionic derivatives of cyclodextrin polymers and cyclodextrins immobilized on a solid surface are also disclosed.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: February 2, 1993
    Assignee: The Trustees of the University of Pennsylvania/Childrens Hospital Corporation
    Inventors: Paul B. Weisz, Yuen W. Shing, Judah Folkman
  • Patent number: 5019562
    Abstract: Pathological or otherwise undesirable cell or tissue growth in mammals, including humans, is inhibited by administering thereto a composition exemplified by (1) a water-soluble cyclodextrin sulfate salt, together with (2) a growth-inhibiting organic compound. The growth-inhibiting compound (2) may be a steroid having no inhibiting effect in the absence of (1), or an organic compound which may be an active growth inhibitor, the action of which is potentiated by (1). The invention provides a method for inhibiting angiogenesis and controlling the growth of tumors as well as treating other diseases and pathological conditions associated with undesired cell or tissue growth, including angiogenesis.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: May 28, 1991
    Assignee: The Trustees of the University of Pennsylvania/Childrens Hospital Corporation
    Inventors: Moses J. Folkman, Paul B. Weisz
  • Patent number: 4983274
    Abstract: The catalytic properties of a metal-containing shape selective crystalline silicate zeolite are significantly improved by converting said metal to an intermetallic compound. Thus, for example, zeolite beta containing the intermetallic component platinum zeolite demonstrates improved catalytic properties for dewaxing a hydrocarbon feedstock compared to zeolite beta containing platinum metal alone.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: January 8, 1991
    Assignee: Mobil Oil Corp.
    Inventors: Nai Y. Chen, Thomas F. Degnan, Paul B. Weisz
  • Patent number: 4906671
    Abstract: An improved Fischer-Tropsch process for hydrocarbon synthesis operated in the fluid mode of the Sasol's Synthol Process provides increased diesel and heavier hydrocarbon yield wherein a Fischer-Tropsch synthesis catalyst modified by a minor amount of a zeolite catalyst selectively converts enough waxy product to prevent adhesion between catalyst particles which might interfere with catalyst flow thereby permitting maximization of diesel oil and heavy hydrocarbon yield.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: March 6, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Werner O. Haag, James C. Kuo, Paul B. Weisz
  • Patent number: 4803186
    Abstract: The catalytic properties of a metal-containing shape selective crystalline silicate zeolite are significantly improved by converting said metal to an intermetallic compound. Thus, for example, zeolite beta containing the intermetallic component platinum zeolite demonstrates improved catalytic properties for dewaxing a hydrocarbon feedstock compared to zeolite beta containing platinum metal alone.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: February 7, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Nai Y. Chen, Thomas F. Degnan, Paul B. Weisz
  • Patent number: 4788370
    Abstract: A process is provided for converting feedstock comprising C.sub.2.sup.+ olefins, C.sub.2 -C.sub.7 paraffins or mixtures thereof to product comprising C.sub.5.sup.+ hydrocarbons over a catalyst comprising a siliceous zeolite prepared by the method comprising providing zeolite Beta containing boron and aluminum, treating the zeolite with silicon tetrachloride at a temperature and for a time sufficient to replace boron with silicon, and recovering the siliceous zeolite having reduced boron content but substantially preserved initial aluminum content.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: November 29, 1988
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, David S. Shihabi, Paul B. Weisz
  • Patent number: 4788378
    Abstract: A process is provided for dewaxing hydrocarbon feedstock by isomerizing the waxy components of the feedstock over catalyst comprising a siliceous zeolite having been prepared by the method comprising providing a boron-containing zeolite Beta, treating the zeolite with silicon tetrachloride at a temperature and for a time sufficient to replace boron with silicon, and recovering the siliceous zeolite having reduced boron content but substantially preserved initial aluminum content.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: November 29, 1988
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, David S. Shihabi, Paul B. Weisz