Patents by Inventor Alfred A. Amkraut

Alfred A. Amkraut 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).

  • Publication number: 20070118070
    Abstract: A percutaneous agent delivery or sampling device comprising a sheet having a plurality of microblades for piercing and anchoring to the skin for increasing transdermal flux of an agent and for improving the attachment of the device to the skin.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 24, 2007
    Inventors: Michel Cormier, Armand Neukermans, Barry Block, Felix Theeuwes, Alfred Amkraut
  • Patent number: 7184826
    Abstract: A percutaneous agent delivery or sampling device comprising a sheet having a plurality of microblades for piercing and anchoring to the skin for increasing transdermal flux of an agent and for improving the attachment of the device to the skin.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: February 27, 2007
    Assignee: Alza Corporation
    Inventors: Michel J. N. Cormier, Armand P. Neukermans, Barry Block, Felix T. Theeuwes, Alfred A. Amkraut
  • Publication number: 20020016562
    Abstract: A percutaneous agent delivery or sampling device comprising a sheet having a plurality of microblades for piercing and anchoring to the skin for increasing transdermal flux of an agent and for improving the attachment of the device to the skin.
    Type: Application
    Filed: June 17, 1997
    Publication date: February 7, 2002
    Inventors: MICHEL J. N. CORMIER, ARMAND P. NEUKERMANS, BARRY BLOCK, FELIX T. THEEUWES, ALFRED A. AMKRAUT
  • Patent number: 5702727
    Abstract: Compositions and methods for the oral administration of drugs and other active agents are provided. The compositions comprise an active agent carrier particle attached to a binding moiety which binds specifically to a target molecule present on the surface of a mammalian enterocyte. The binding moiety binds to the target molecule with a binding affinity or avidity sufficient to initiate endocytosis or phagocytosis of the particulate active agent carrier so that the carrier will be absorbed by the enterocyte. The active agent will then be released from the carrier to the host's systemic circulation. In this way, degradation of degradation-sensitive drugs, such as polypeptides, in the intestines can be avoided while absorption of proteins and polypeptides from the intestinal tract is increased.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: December 30, 1997
    Assignee: Alza Corporation
    Inventors: Alfred A. Amkraut, Heechung Yang
  • Patent number: 5620708
    Abstract: Compositions and methods for the oral administration of drugs and other active agents are provided. The compositions comprise an active agent carrier particle attached to a binding moiety which binds specifically to a target molecule present on the surface of a mammalian enterocyte. The binding moiety binds to the target molecule with a binding affinity or avidity sufficient to initiate endocytosis or phagocytosis of the particulate active agent carrier so that the carrier will be absorbed by the enterocyte. The active agent will then be released from the carrier to the host's systemic circulation. In this way, degradation of degradation-sensitive drugs, such as polypeptides, in the intestines can be avoided while absorption of proteins and polypeptides from the intestinal tract is increased.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: April 15, 1997
    Assignee: ALZA Corporation
    Inventors: Alfred A. Amkraut, Heechung Yang
  • Patent number: 5451407
    Abstract: The present invention is directed to the transdermal administration of methyl nicotinate and an irritating or sensitizing drug. The invention includes a transdermal drug delivery device comprising a matrix adapted to be placed in irritating/sensitizing drug- and methyl nicotinate-transmitting relation with the skin site. The matrix contains sufficient amounts of irritating/sensitizing drug and of methyl nicotinate, in combination, to continuously administer to the skin for a predetermined period of time the drug to provide an effective therapeutic result. The invention is also directed to a method for either 1) preventing or reducing the irritation caused by an irritating drug or 2) preventing or reducing sensitization from occurring, as well as reducing or eliminating pain and discomfort occurring during the elicitation phase after sensitization has already been induced.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: September 19, 1995
    Assignee: ALZA Corporation
    Inventors: Michel Cormier, Alfred Amkraut, Philip W. Ledger
  • Patent number: 5304379
    Abstract: A method and means for reducing sensitization or irritation caused by transdermally delivered drugs, wherein one or more metabolic modulators is coadministered with a sensitizing or irritating drug.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: April 19, 1994
    Assignee: Alza Corporation
    Inventors: Michel J. N. Cormier, Philip W. Ledger, Alfred Amkraut, Jean P. Marty
  • Patent number: 5286491
    Abstract: A method of preventing sensitization in transdermal drug delivery by the inclusion of a corticosteroid, which will be coextensively coadministered with the sensitizing agent.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: February 15, 1994
    Assignee: Alza Corporation
    Inventors: Alfred Amkraut, Jane E. Shaw
  • Patent number: 5171576
    Abstract: A method of preventing sensitization in transdermal drug delivery by the inclusion of a corticosteroid, which will be co-extensively coadministered with the sensitizing agent.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: December 15, 1992
    Assignee: ALZA Corporation
    Inventors: Alfred Amkraut, Jane E. Shaw
  • Patent number: 5160741
    Abstract: The present invention provides a method of reducing or preventing skin irritation of a weak base drug by inhibiting the accumulation of the drug in the lysosomes. The drug is irritating to humans, i.e., the drug is susceptible to inducing skin or mucosa irritation in a human when the drug is transdermally administered to the human at a therapeutically effective rate. Irritation reduction or prevention is induced by coadministering to the skin or mucosa of the human:(a) a therapeutically effective amount of a weak base drug which is irritating to humans, at a therapeutically effective rate over a predetermined period of time; and(b) an effective amount of an agent capable of inhibiting the lysosomal uptake of the drug to reduce or prevent irritation to the skin or mucosa.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: November 3, 1992
    Assignee: ALZA Corporation
    Inventors: Michel J. N. Cormier, Philip W. Ledger, Alfred Amkraut
  • Patent number: 5149539
    Abstract: The present invention is directed to a method of reducing or preventing skin sensitization by inhibiting the immunological processing of a sensitizing drug as an antigen. The drug is sensitizing to humans, i.e., the drug is susceptible to inducing skin or mucosa sensitization in a human when the drug is transdermally administered to the human at a therapeutically effective rate. Skin sensitization reduction or prevention is induced by coadministering to the skin or mucosa of the human:(a) a therapeutically effective amount of a sensitizing drug, at a therapeutically effective rate over a predetermined period of time; and(b) an antigen processing-inhibiting agent in an amount effective to inhibit the antigen processing of the drug.The system of the invention comprises a matrix adapted to be placed in sensitizing drug and antigen processing-inhibiting agent transmitting relation to the selected skin or mucosa site.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: September 22, 1992
    Assignee: ALZA Corporation
    Inventors: Philip W. Ledger, Michel J. N. Cormier, Alfred Amkraut
  • Patent number: 5130139
    Abstract: The present invention provides a method of reducing or preventing skin irritation of a weak base drug by inhibiting the accumulation of the drug in the lysosomes. The drug is irritating to humans, i.e., the drug is susceptible to inducing skin or mucosa irritation in a human when the drug is transdermally administered to the human at a therapeutically effective rate. Irritation reduction or prevention is induced by coadministering to the skin or mucosa of the human:(a) a therapeutically effective amount of a weak base drug which is irritating to humans, at a therapeutically effective rate over a predetermined period of time; and(b) an effective amount of an agent capable of inhibiting the lysosomal uptake of the drug to reduce or prevent irritation to the skin or mucosa.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: July 14, 1992
    Assignee: Alza Corporation
    Inventors: Michel J-N Cormier, Philip W. Ledger, Alfred Amkraut
  • Patent number: 5120545
    Abstract: The present invention is directed to a method of reducing or preventing skin sensitization by inhibiting the immunological processing of a sensitizing drug as an antigen. The drug is sensitizing to humans, i.e., the drug is susceptible to inducing skin or mucosa sensitization in a human when the drug is transdermally administered to the human at a therapeutically effective rate. Skin sensitization reduction or prevention is induced by coadministering to the skin or mucosa of the human:(a) a therapeutically effective amount of a sensitizing drug, at a therapeutically effective rate over a predetermined period of time; and(b) an antigen processing-inhibiting agent in an amount effective to inhibit the antigen processing of the drug.The system of the invention comprises a matrix adapted to be placed in sensitizing drug and antigen processing-inhibiting agent transmitting relation to the selected skin or mucosa site.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: June 9, 1992
    Assignee: Alza Corporation
    Inventors: Philip W. Ledger, Michel J. Cormier, Alfred Amkraut
  • Patent number: 5118509
    Abstract: A method of inducing immune tolerance to a drug which is normally sensitizing to humans when applied to human skin or mucosa is provided. The sensitizing drug is continuously and co-extensively administered to a selected skin or mucosa site with the corticosteroid. Preferably, the corticosteroid is hydrocortisone or an ester thereof. The corticosteroid is administered to the selected skin or mucosa site at a rate and for a period of time sufficient to induce tolerance to the drug. Thereafter, the drug can be administered to the human, without administering any corticosteroid, without danger of inducing sensitization to the drug in the human.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: June 2, 1992
    Assignee: ALZA Corporation
    Inventor: Alfred Amkraut
  • Patent number: 5077054
    Abstract: A method of preventing sensitization in transdermal drug delivery by the inclusion of a corticosteroid, which will be co-extensively coadministered with the sensitizing agent.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: December 31, 1991
    Assignee: Alza Corporation
    Inventors: Alfred Amkraut, Jane E. Shaw
  • Patent number: 5049387
    Abstract: A method of inducing immune tolerance to a drug which is normally sensitizing to humans when applied to human skin or mucosa is provided. The sensitizing drug is continuously and co-extensively administered to a selected skin or mucosa site with the corticosteroid. Preferably, the corticosteroid is hydrocortisone or an ester thereof. The corticosteroid is administered to the selected skin or mucosa site at a rate and for a period of time sufficient to induce tolerance to the drug. Thereafter, the drug can be administered to the human, without administering any corticosteroid, without danger of inducing sensitization to the drug in the human.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: September 17, 1991
    Assignee: Alza Corporation
    Inventor: Alfred Amkraut
  • Patent number: 5000956
    Abstract: A method of preventing sensitization in transdermal drug delivery by the inclusion of a corticosteroid, which wll be co-extensively coadministered with the sensitizing agent.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: March 19, 1991
    Assignee: Alza Corporation
    Inventors: Alfred Amkraut, Jane E. Shaw
  • Patent number: 4885154
    Abstract: A method and means for reducing sensitization or irritation caused by transdermally delivered drugs, wherein one or more metabolic modulators is coadministered with a sensitizing or irritating drug.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: December 5, 1989
    Assignee: Alza Corporation
    Inventors: Michel J. N. Cormier, Philip W. Ledger, Alfred Amkraut, Jean P. Marty
  • Patent number: 4484923
    Abstract: The invention pertains to the administration of an immunopotentiator to activate an immune response. The administration comprises the controlled and continuous administration of the immunopotentiator leading to a high immune response with adequate persistancy, while simultaneously and substantially reducing or eliminating inflammatory reactions usually accompanying depot-type administration.
    Type: Grant
    Filed: January 5, 1984
    Date of Patent: November 27, 1984
    Assignee: ALZA Corporation
    Inventors: Alfred A. Amkraut, Agusto B. Martins
  • Patent number: 4455142
    Abstract: A method is disclosed for potentiating the immune response of an animal. The method consists in administering an antigen and an immunopotentiator in effective low dose, at a controlled rate, and continuously to produce the desired immune response.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: June 19, 1984
    Assignee: Alza Corporation
    Inventors: Agusto B. Martins, Alfred A. Amkraut