Patents by Inventor Howard C. Krivan

Howard C. Krivan 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: 8187614
    Abstract: Infectious diseases caused by pathogenic microorganisms resident in the alimentary tract of humans and animals can be prevented and treated by administering to the alimentary tract of the human or animal an effective amount of a composition containing at least one lectin capable of binding to an infective microorganism and diminishing its infective capability of the microorganism. The lectin is administered dispensed in a pharmaceutically acceptable non-toxic vehicle. Peptic ulcer disease caused by infection with H. pylori can be treated by oral administration of lectins that bind to the pathogen. A beneficial ecology of H. pylori can be maintained in infected patients by chronic oral administration of lectins that bind to the pathogen.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: May 29, 2012
    Assignee: Legere Pharmaceuticals, Ltd.
    Inventors: Howard C. Krivan, Richard C. Potter, Michael J. Oldham
  • Publication number: 20100331242
    Abstract: Infectious diseases caused by pathogenic microorganisms resident in the alimentary tract of humans and animals can be prevented and treated by administering to the alimentary tract of the human or animal an effective amount of a composition containing at least one lectin capable of binding to an infective microorganism and diminishing its infective capability of the microorganism. The lectin is administered dispensed in a pharmaceutically acceptable non-toxic vehicle. Peptic ulcer disease caused by infection with H. pylori can be treated by oral administration of lectins that bind to the pathogen. A beneficial ecology of H. pylori can be maintained in infected patients by chronic oral administration of lectins that bind to the pathogen.
    Type: Application
    Filed: September 3, 2010
    Publication date: December 30, 2010
    Applicant: LEGERE PHARMACEUTICALS, LTD.
    Inventors: HOWARD C. KRIVAN, RICHARD C. POTTER, MICHAEL J. OLDHAM
  • Patent number: 7790672
    Abstract: Infectious diseases caused by pathogenic microorganisms resident in the alimentary tract of humans and animals can be prevented and treated by administering to the alimentary tract of the human or animal an effective amount of a composition containing at least one lectin capable of binding to an infective microorganism and diminishing its infective capability of the microorganism. The lectin is administered dispensed in a pharmaceutically acceptable non-toxic vehicle. Peptic ulcer disease caused by infection with H. pylori can be treated by oral administration of lectins that bind to the pathogen. A beneficial ecology of H. pylori can be maintained in infected patients by chronic oral administration of lectins that bind to the pathogen.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: September 7, 2010
    Assignee: Legere Pharmaceuticals, Inc.
    Inventors: Howard C. Krivan, Richard C. Potter, Michael J. Oldham
  • Publication number: 20040171525
    Abstract: Infectious diseases caused by pathogenic microorganisms resident in the alimentary tract of humans and animals can be prevented and treated by administering to the alimentary tract of the human or animal an effective amount of a composition containing at least one lectin capable of binding to an infective microorganism and diminishing its infective capability of the microorganism. The lectin is administered dispensed in a pharmaceutically acceptable non-toxic vehicle. Peptic ulcer disease caused by infection with H. pylori can be treated by oral administration of lectins that bind to the pathogen. A beneficial ecology of H. pylori! can be maintained in infected patients by chronic oral administration of lectins that bind to the pathogen.
    Type: Application
    Filed: September 3, 2003
    Publication date: September 2, 2004
    Applicant: Legere Pharmaceuticals, Ltd.
    Inventors: Howard C. Krivan, Richard C. Potter, Michael J. Oldham
  • Publication number: 20030158095
    Abstract: In order to prevent conception and/or the spread of sexually transmitted diseases (STD's) one or more lectins capable of binding sperm and/or the pathogenic microorganisms responsible for STD's are administered to the vagina prior to sexual intercourse. The lectins immobilize the sperm to render them incapable of fertilization and also bind to the microorganisms to render them non-pathogenic or to the cells to prevent infection by the microorganisms. Lectins can also be administered to treat sexually transmitted vaginal infections. The invention also encompasses a device for to be placed in the vault of the vagina which comprises a ring which surrounds the cervix and a membrane spanning the central aperture of the ring to prevent the direct contact of ejaculate with the cervical tissues. The device is impregnated or coated with lectins and releases them into the vaginal environment over a period of time.
    Type: Application
    Filed: November 22, 2002
    Publication date: August 21, 2003
    Inventors: Michael J. Oldham, Bruce F. Rose, Howard C. Krivan
  • Publication number: 20030045455
    Abstract: Infectious diseases caused by pathogenic microorganisms resident in the alimentary tract of humans and animals can be prevented and treated by administering to the alimentary tract of the human or animal an effective amount of a composition containing at least one lectin capable of binding to an infective microorganism and diminishing its infective capability of the microorganism. The lectin is administered dispersed in a pharmaceutically acceptable non-toxic vehicle. Peptic ulcer disease caused by infection with H. pylori can be treated by oral administration of lectins that bind to the pathogen. A beneficial ecology of H. pylori can be maintained in infected patients by chronic oral administration of lectins that bind to the pathogen.
    Type: Application
    Filed: March 15, 2002
    Publication date: March 6, 2003
    Inventors: Howard C. Krivan, Richard C. Potter, Michael J. Oldham
  • Publication number: 20020183248
    Abstract: Diseases and disorders of dermal tissue such as the skin, hair and nails are treated or prevented by administering one or more lectins, capable of binding to the surface of pathogenic microorganisms inhabiting the hair, skin, and nails, or of binding to the superficial tissues that comprise hair, skin, and nails. The lectins may be administered topically or subcutaneously to a patient infected with pathogenic microorganisms or in danger of being exposed to such pathogens. Lectins that stimulate cell mitosis may also be administered to accelerate wound healing and restore the appearance of age-wrinkled skin. Lectins that coagulate blood can be administered to assist in stopping bleeding from skin lesions. The lectins may be applied to the skin in a pharmceutically acceptable vehicle.
    Type: Application
    Filed: May 24, 2002
    Publication date: December 5, 2002
    Inventors: Michael J. Oldham, Howard C. Krivan, Richard C. Potter
  • Publication number: 20020137674
    Abstract: Infectious diseases caused by pathogenic microorganisms resident in the alimentary tract of humans and animals can be prevented and treated by administering to the alimentary tract of the human or animal an effective amount of a composition containing at least one lectin capable of binding to an infective microorganism and diminishing its infective capability of the microorganism. The lectin is administered dispersed in a pharmaceutically acceptable non-toxic vehicle.
    Type: Application
    Filed: January 8, 2002
    Publication date: September 26, 2002
    Inventors: Michael J. Oldham, Howard C. Krivan
  • Publication number: 20020111297
    Abstract: In order to prevent conception and/or the spread of sexually transmitted diseases (STD's) one or more lectins capable of binding sperm and/or the pathogenic microorganisms responsible for STD's are administered to the vagina prior to sexual intercourse. The lectins immobilize the sperm to render them incapable of fertilization and also bind to the microorganisms to render them non-pathogenic or to the cells to prevent infection by the microorganisms. Lectins can also be administered to treat sexually transmitted vaginal infections. The invention also encompasses a device for to be placed in the vault of the vagina which comprises a ring which surrounds the cervix and a membrane spanning the central aperture of the ring to prevent the direct contact of ejaculate with the cervical tissues. The device is impregnated or coated with lectins and releases them into the vaginal environment over a period of time.
    Type: Application
    Filed: January 14, 2002
    Publication date: August 15, 2002
    Inventors: Michael J. Oldham, Bruce F. Rose, Howard C. Krivan
  • Publication number: 20020082571
    Abstract: Menstrual discharge is coagulated by contacting with one or more lectins capable of agglutinating blood with the menstrual flow to coagulate the blood at least partially, thereby rendering it easier to control and collect. The lectins may be applied either alone, in neat or formulated form, or in conjunction with an intravaginal or extravaginal device. Toxic shock syndrome is prevented by administering one or more lectins capable of diminishing the infective capability of the microorganism causing toxic shock.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 27, 2002
    Inventors: Howard C. Krivan, Michael J. Oldham, Richard C. Potter
  • Publication number: 20020001600
    Abstract: Diseases and disorders of dermal tissue such as the skin, hair and nails are treated or prevented by administering one or more lectins, capable of binding to the surface of pathogenic microorganisms inhabiting the hair, skin, and nails, or of binding to the superficial tissues that comprise hair, skin, and nails. The lectins may be administered topically or subcutaneously to a patient infected with pathogenic microorganisms or in danger of being exposed to such pathogens. Lectins that stimulate cell mitosis may also be administered to accelerate wound healing and restore the appearance of age-wrinkled skin. Lectins that coagulate blood can be administered to assist in stopping bleeding from skin lesions. The lectins may be applied to the skin in a pharmceutically acceptable vehicle.
    Type: Application
    Filed: May 30, 1995
    Publication date: January 3, 2002
    Inventors: MICHAEL J. OLDHAM, HOWARD C. KRIVAN, RICHARD C. POTTER
  • Patent number: 6159174
    Abstract: In order to prevent conception and/or the spread of sexually transmitted diseases (STD's) one or more lectins capable of binding sperm and/or the pathogenic microorganisms responsible for STD's are administered to the vagina prior to sexual intercourse. The lectins immobilize the sperm to render them incapable of fertilization and also bind to the microorganisms to render them non-pathogenic or to the cells to prevent infection by the microorganisms. Lectins can also be administered to treat sexually transmitted vaginal infections. The invention also encompasses a device for to be placed in the vault of the vagina which comprises a ring which surrounds the cervix and a membrane spanning the central aperture of the ring to prevent the direct contact of ejaculate with the cervical tissues. The device is impregnated or coated with lectins and releases them into the vaginal environment over a period of time.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: December 12, 2000
    Assignee: Legere Pharmaceuticals, Ltd.
    Inventors: Michael J. Oldham, Bruce F. Rose, Howard C. Krivan
  • Patent number: 6074671
    Abstract: In order to prevent conception and/or infection by sexually transmitted diseases (STDs) one or more lectins capable of binding sperm or agglutinable components of male ejaculate and/or the pathogenic microorganisms responsible for STDs or the carbohydrate moieties expressed on cell surfaces by which the microorganisms bind to the cells, are administered to the vagina prior to sexual intercourse. The lectins prevent conception by binding to the sperm or agglutinable components of male ejaculate to render the sperm incapable of fertilization. They also bind to the pathogenic microorganisms to render them non-pathogenic or to carbohydrates expressed on cell surfaces to prevent infection by the microorganisms or treat such infections. Lectins can also be administered to treat sexually transmitted vaginal infections. The lectins can also be applied to or contained within a condom.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: June 13, 2000
    Assignee: Legere Pharmaceuticals, Ltd.
    Inventors: Michael J. Oldham, Bruce F. Rose, Howard C. Krivan
  • Patent number: 6066338
    Abstract: In order to prevent conception and/or the spread of sexually transmitted diseases (STD's) one or more lectins capable of binding sperm and/or the pathogenic microorganisms responsible for STD's are administered to the vagina prior to sexual intercourse. The lectins immobilize the sperm to render them incapable of fertilization and also bind to the microorganisms to render them non-pathogenic or to the cells to prevent infection by the microorganisms. Lectins can also be administered to treat sexually transmitted vaginal infections.The invention also encompasses a device for to be placed in the vault of the vagina which comprises a ring which surrounds the cervix and a membrane spanning the central aperture of the ring to prevent the direct contact of ejaculate with the cervical tissues. The device is impregnated or coated with lectins and releases them into the vaginal environment over a period of time.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: May 23, 2000
    Assignee: Legere Pharmaceuticals, Ltd.
    Inventors: Michael J. Oldham, Bruce F. Rose, Howard C. Krivan
  • Patent number: 5843463
    Abstract: Disclosed herein are immunogenic polysaccharide-H. influenzae adhesin protein conjugates, a purified H. influenzae adhesin protein and related proteins and polypeptides, DNA useful for producing the proteins, synthetic polyribosylribotol phosphate (PRP) oligosaccharides and intermediates useful for their synthesis, and methods of making and using these materials. The conjugates comprise a PRP fragment, preferably a synthetic oligosaccharide, coupled to an H. influenzae adhesin protein. The invention further comprises purified H. influenzae adhesin proteins and novel PRP oligosaccharides. The invention also comprises methods of producing these materials and using them in a vaccine to protect humans and other mammals against H. influenzae infection.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: December 1, 1998
    Assignee: AntexBiologics, Inc.
    Inventors: Howard C. Krivan, James E. Samuel
  • Patent number: 5721115
    Abstract: Disclosed herein are an immunogenic Haemophilus influenzae outer membrane protein of 49 kDa as well as a mature outer membrane protein of 47 kDa protein, DNA and vector useful for producing the outer membrane protein, host cell containing said DNA, and a method for producing the outer membrane protein. Also disclosed are methods for producing these materials which can be beneficially used in the production of vaccines against H. influenzae.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 24, 1998
    Assignee: Antex Biologics, Inc.
    Inventors: Howard C. Krivan, James E. Samuel
  • Patent number: 5696000
    Abstract: Disclosed herein are receptors for pathogenic or opportunistic microorganisms, methods of obtaining such reeptors, and methods of using such receptors for diagnostic or pharmaceutical purposes. The receptor comprises a substantially pure compound selected from the group consisting of GalB1-4GlcNAcB1-3GalB1-4GlcB1-1-X(R), GalB1-3GlcNAcB1-3GalB1-4GlcB1-1-X(R), GlcNAcB1-3GalB1-4GlcB1-1-X(R), GalB1-4GlcNAcB1-3GalB1-4Glc, GalB1-3GlcNAcB1-3GalB1-4Glc, GlcNAcB1-3GalB1-4Glc, GalB1-4GlcNAcB1-3Gal, and GalB1-3-GlcNAcB1-3Gal wherein X is sphingosine, hydroxylated sphingosine, or saturated sphingosine and R is H or an N-acyl fatty acid derivative of X such that X(R) is a ceramide.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: December 9, 1997
    Assignee: Antex Biologics Inc.
    Inventors: Howard C. Krivan, James E. Samuel
  • Patent number: 5679547
    Abstract: Disclosed herein are immunogenic polysaccharide-H. influenzae adhesin protein conjugates, a purified H. influenzae adhesin protein and related proteins and polypeptides, DNA useful for producing the proteins, synthetic polyribosylribotol phosphate (PRP) oligosaccharides and intermediates useful for their synthesis, and methods of making and using these materials. The conjugates comprise a PRP fragment, preferably a synthetic oligosaccharide, coupled to an H. influenzae adhesin protein. The invention further comprises purified H. influenzae adhesin proteins and novel PRP oligosaccharides. The invention also comprises methods of producing these materials and using them in a vaccine to protect humans and other mammals against H. influenzae infection.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 21, 1997
    Assignee: Antex Biologics formerlly MicroCarb Inc.
    Inventors: Howard C. Krivan, James E. Samuel
  • Patent number: 5529904
    Abstract: A diagnostic kit for detecting the presence of microorganisms, comprising an insoluble substrate; and a carbohydrate receptor immobilized on the insoluble substrate, the carbohydrate receptor being capable of adsorbing microorganisms; and a labelled reagent useful for detecting the presence of microorganisms bound to the carbohydrate receptors and a method for detecting the presence of specified microorganisms in a sample, which comprises contacting a sample to be tested with carbohydrate receptors immobilized on an insoluble substrate; and determining the extent of binding of microorganisms in the sample to the carbohydrate receptors by use of a labelled reagent.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: June 25, 1996
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventors: Victor Ginsburg, Howard C. Krivan, David D. Roberts
  • Patent number: 5512282
    Abstract: Disclosed herein are high titer, monospecific, polyclonal antibodies to Shiga-like toxins. Also disclosed are methods for producing such antibodies, compositions containing them, and methods for the diagnosis, prevention, and treatment of diseases caused by Shiga-like toxins. These include hemorrhagic colitis and hemolytic uremic syndrome in humans, edema disease in swine, and calf diarrhea in cattle.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: April 30, 1996
    Assignee: MicroCarb, Inc.
    Inventors: Howard C. Krivan, James E. Samuel