Patents by Inventor Robert I. Lehrer

Robert I. Lehrer 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: 8716246
    Abstract: Azuvirin peptides are small peptide agents useful in delivering functional moieties, such as sensitizers, chemotherapeutic agents and the like to cancer cells expressing ephrin receptors. The peptides are also useful for administration to a patient suffering from a viral infection, or to an individual facing exposure to a viral infection, especially one caused by the Human Immunodeficiency Virus (HIV-1).
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: May 6, 2014
    Assignee: The Regents of the University of California
    Inventors: Piotr P. Ruchala, Robert I. Lehrer
  • Publication number: 20130029903
    Abstract: Azuvirin peptides are small peptide agents useful in delivering functional moieties, such as sensitizers, chemotherapeutic agents and the like to cancer cells expressing ephrin receptors. The peptides are also useful for administration to a patient suffering from a viral infection, or to an individual facing exposure to a viral infection, especially one caused by the HIV-1 retrovirus.
    Type: Application
    Filed: January 3, 2012
    Publication date: January 31, 2013
    Inventors: Piotr P. Ruchala, Robert I. Lehrer
  • Patent number: 7718610
    Abstract: Retrocyclin peptides are small antimicrobial agents with potent activity against bacteria and viruses. The peptides are nonhemolytic, and exhibit minimal in vitro cytotoxicity. A pharmaceutical composition comprising retrocyclin as an active agent is administered therapeutically to a patient suffering from a bacterial and/or viral infection, or to an individual facing exposure to a bacterial and/or viral infection, especially one caused by the HIV-1 retrovirus or other sexually-transmitted pathogens.
    Type: Grant
    Filed: January 1, 2008
    Date of Patent: May 18, 2010
    Assignee: The Regents of the University of California
    Inventors: Robert I. Lehrer, Alan J. Waring, Alexander M. Cole, Teresa B. Hong
  • Publication number: 20090264344
    Abstract: Retrocyclin peptides are small antimicrobial agents with potent activity against bacteria and viruses. The peptides are nonhemolytic, and exhibit minimal in vitro cytotoxicity. A pharmaceutical composition comprising retrocyclin as an active agent is administered therapeutically to a patient suffering from a bacterial and/or viral infection, or to an individual facing exposure to a bacterial and/or viral infection, especially one caused by the HIV-1 retrovirus or other sexually-transmitted pathogens.
    Type: Application
    Filed: January 1, 2008
    Publication date: October 22, 2009
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: ROBERT I. LEHRER, ALAN J. WARING, ALEXANDER M. COLE, TERESA B. HONG
  • Patent number: 7314858
    Abstract: Retrocyclin peptides are small antimicrobial agents with potent activity against bacteria and viruses. The peptides are nonhemolytic, and exhibit minimal in vitro cytotoxicity. A pharmaceutical composition comprising retrocyclin as an active agent is administered therapeutically to a patient suffering from a bacterial and/or viral infection, or to an individual facing exposure to a bacterial and/or viral infection, especially one caused by the HIV-1 retrovirus or other sexually-transmitted pathogens.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: January 1, 2008
    Assignee: The Regents of the University of California
    Inventors: Robert I. Lehrer, Alan J. Waring, Alexander M. Cole, Teresa B. Hong
  • Publication number: 20040152638
    Abstract: Peptide-based compounds containing four invariant cysteine residues which have been optionally oxidized to contain two intramolecular disulfide bonds, or modified forms where the cysteines are replaced are useful as preservatives and in preventing, treating, or ameliorating viral or microbial infection in animals and plants, and in inactivating endotoxin.
    Type: Application
    Filed: July 24, 2003
    Publication date: August 5, 2004
    Applicant: The Regents of the University of California
    Inventors: Robert I. Lehrer, Sylvia S.L. Harwig, Vladimir N. Kokryakov
  • Patent number: 6713078
    Abstract: Retrocyclin peptides are small antimicrobial agents with potent activity against bacteria and viruses. The peptides are nonhemolytic, and exhibit minimal in vitro cytotoxicity. A pharmaceutical composition comprising retrocyclin as an active agent is administered therapeutically to a patient suffering from a bacterial and/or viral infection, or to an individual facing exposure to a bacterial and/or viral infection, especially one caused by the HIV-1 retrovirus or other sexually-transmitted pathogens.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: March 30, 2004
    Assignee: The Regents of the University of California
    Inventors: Robert I. Lehrer, Alan J. Waring, Alexander M. Cole, Teresa B. Hong
  • Patent number: 6653442
    Abstract: Peptide-based compounds containing four invariant cysteine residues which have been optionally oxidized to contain two intramolecular disulfide bonds, or modified forms where the cysteines are replaced are useful as preservatives and in preventing, treating, or ameliorating viral or microbial infection in animals and plants, and in inactivating endotoxin.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: November 25, 2003
    Assignee: IntraBiotics Pharmaceuticals, Inc.
    Inventors: Conway C. Chang, Chee L. Gu, Jie Chen, Deborah A. Steinberg, Robert I. Lehrer, Sylvia S. L. Harwig, Vladimir N. Kokryakov
  • Publication number: 20030144184
    Abstract: Retrocyclin peptides are small antimicrobial agents with potent activity against bacteria and viruses. The peptides are nonhemolytic, and exhibit minimal in vitro cytotoxicity. A pharmaceutical composition comprising retrocyclin as an active agent is administered therapeutically to a patient suffering from a bacterial and/or viral infection, or to an individual facing exposure to a bacterial and/or viral infection, especially one caused by the HIV-1 retrovirus or other sexually-transmitted pathogens.
    Type: Application
    Filed: May 6, 2002
    Publication date: July 31, 2003
    Inventors: Robert I. Lehrer, Alan J. Waring, Alexander M. Cole, Teresa B. Hong
  • Publication number: 20030100483
    Abstract: Peptide-based compounds containing four invariant cysteine residues which have been optionally oxidized to contain two intramolecular disulfide bonds, or modified forms where the cysteines are replaced are useful as preservatives and in preventing, treating, or ameliorating viral or microbial infection in animals and plants, and in inactivating endotoxin.
    Type: Application
    Filed: March 30, 2000
    Publication date: May 29, 2003
    Inventors: Robert I. Lehrer, Sylvia S.L. Harwig, Vladimir N. Kokryakov
  • Patent number: 6492328
    Abstract: Novispirin peptides are antimicrobial agents with potent activity against Gram-negative bacteria. The peptides are nonhemolytic, exhibit reduced in vitro cytotoxicity relative to other antimicrobial peptides, and were well-tolerated in vivo after intravenous injection. Novispirins also bind lipopolysaccharide (LPS), a property that may mitigate symptoms associated with Gram-negative bacterial infection. A pharmaceutical composition comprising novispirin as an active agent is administered to a patient suffering from or predisposed to a microbial infection, particularly Gram-negative bacterial infections.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: December 10, 2002
    Assignees: The University of Iowa Research Foundation, The Regents of the University of California
    Inventors: Robert I. Lehrer, Alan J. Waring, Brian F. Tack
  • Publication number: 20020147301
    Abstract: The present invention provides a new class of broad-spectrum antimicrobial peptides effective against a wide variety of microbes, including bacteria, viruses, retroviruses, fungi, yeast and protozoa.
    Type: Application
    Filed: May 24, 2001
    Publication date: October 10, 2002
    Applicant: IntraBiotics Pharmaceuticals, Inc.
    Inventors: Robert I. Lehrer, Sylvia S.L. Harwig, Conway C. Chang, Chee L. Gu
  • Publication number: 20020082195
    Abstract: Novispirin peptides are antimicrobial agents with potent activity against Gram-negative bacteria. The peptides are nonhemolytic, exhibit reduced in vitro cytotoxicity relative to other antimicrobial peptides, and were well-tolerated in vivo after intravenous injection. Novispirins also bind lipopolysaccharide (LPS), a property that may mitigate symptoms associated with Gram-negative bacterial infection. A pharmaceutical composition comprising novispirin as an active agent is administered to a patient suffering from or predisposed to a microbial infection, particularly Gram-negative bacterial infections.
    Type: Application
    Filed: April 19, 2001
    Publication date: June 27, 2002
    Inventors: Robert I. Lehrer, Alan J. Waring, Brian F. Tack
  • Publication number: 20020034739
    Abstract: Peptides that are characteristic of tumors of the steroid regulated organs are disclosed. The peptides are useful for the production of antibodies that may in turn be used to detect metastases of these tumors. The antibodies may also be used for purifying the peptides.
    Type: Application
    Filed: July 7, 1998
    Publication date: March 21, 2002
    Inventors: ROBERT I. LEHRER, CHENGQUAN ZHAO, BENJAMIN J. GLASGOW
  • Patent number: 6307016
    Abstract: The present invention provides a new class of broad-spectrum antimicrobial peptides effective against a wide variety of microbes, including bacteria, viruses, retroviruses, fungi, yeast and protozoa.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: October 23, 2001
    Assignee: IntraBiotics Pharmaceuticals, Inc.
    Inventors: Robert I. Lehrer, Sylvia S. L. Harwig, Conway C. Chang, Chee L. Gu
  • Patent number: 6159936
    Abstract: Peptide-based compounds containing four invariant cysteine residues which have been optionally oxidized to contain two intramolecular disulfide bonds, or modified forms where the cysteines are replaced are useful as preservatives and in preventing, treating, or ameliorating viral or microbial infection in animals and plants, and in inactivating endotoxin. These compounds, in one embodiment, are of the formula:A.sub.1 --A.sub.2 --A.sub.3 --A.sub.4 --A.sub.5 --A.sub.6 --A.sub.7 --A.sub.8 --A.sub.9 --A.sub.10 --A.sub.11 --A.sub.12 --A.sub.13 --A.sub.14 --A.sub.15 --A.sub.16 --(A.sub.17 --A.sub.18) (1)and the N-terminal acylated and/or C-terminal amidated or esterified forms thereof, which is either in the optionally --SH stablizied linear or in a cystine-bridged formwherein each of A.sub.1 and A.sub.9 is independently a basic amino acid;each of A.sub.2 and A.sub.3 is independently a small amino acid;each of A.sub.5, A.sub.7, A.sub.12, A.sub.14 and A.sub.16 is independently a hydrophobic amino acid;A.sub.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: December 12, 2000
    Assignee: The Regents of the University of California
    Inventors: Robert I. Lehrer, Sylvia S. L. Harwig, Vladimir N. Kokryakov
  • Patent number: 6043220
    Abstract: The invention is directed to antimicrobial peptides related to naturally-occurring protegrin peptides, and methods of using the peptides in a variety of contexts, including the treatment or prevention of infections, and diseases related thereto.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: March 28, 2000
    Assignee: IntraBiotics Pharmaceuticals, Inc.
    Inventors: Conway C. Chang, Jie Chen, Robert I. Lehrer, Peggy A. Radel
  • Patent number: 6040293
    Abstract: Novel microbial peptides called clavanins are of the formula[X'.sub.1 X.sub.2 B'.sub.3 X.sub.4 X.sub.5 ]U.sub.6 B.sub.7 X.sub.8 X.sub.9 B.sub.10 B.sub.11 X.sub.12 U.sub.13 Z.sub.14 X.sub.15 X.sub.16 B*.sub.17 U.sub.18 X.sub.19 U.sub.20 B.sub.21 X.sub.22 X.sub.23 ( 1)(SEQ ID NO:1 )including the salts, esters, amides and acylated forms thereofwherein X is a hydrophobic amino acid residue or modified form thereof;X' is a small or a hydrophobic amino acid residue or a modified form thereof;B is a basic amino acid residue or modified form thereof;B' is basic or a polar/large amino acid residue or modified form thereof; andB* is a basic or a hydrophobic amino acid residue or a modified form thereof;U is a small amino acid residue or modified form thereof;Z is a polar/large amino acid residue or modified form thereof, and wherein 1-5 amino acids is deleted from the N-terminus.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 21, 2000
    Assignee: The Regents of the University of California
    Inventors: Robert I. Lehrer, Chengquan Zhao, In-Hee Lee
  • Patent number: 6010876
    Abstract: Novel microbial peptides called clavanins are of the formulaX'.sub.1 X.sub.2 B'.sub.3 X.sub.4 X.sub.5 U.sub.6 B.sub.7 X.sub.8 X.sub.9 B.sub.10 B.sub.11 X.sub.12 U.sub.13 Z.sub.14 X.sub.15 X.sub.16 B*.sub.17 U.sub.18 X.sub.19 U.sub.20 B.sub.21 X.sub.22 X.sub.23 ( 1)(SEQ ID NO: 1)including the salts, esters, amides and acylated forms thereofwherein X is a hydrophobic amino acid residue or modified form thereof;X' is a small or a hydrophobic amino acid residue or a modified form thereof;B is a basic amino acid residue or modified form thereof;B' is basic or a polar/large amino acid residue or modified form thereof; andB* is a basic or a hydrophobic amino acid residue or a modified form thereof;U is a small amino acid residue or modified form thereof;Z is a polar/large amino acid residue or modified form thereof.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: January 4, 2000
    Assignee: The Regents of the University of California
    Inventors: Robert I. Lehrer, Sylvia L. Harwig, deceased, Chengquan Zhao, In-Hee Lee
  • Patent number: RE38828
    Abstract: The present invention provides a new class of broad-spectrum antimicrobial peptides effective against a wide variety of microbes, including bacteria, viruses, retroviruses, fungi, yeast and protozoa.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: October 11, 2005
    Assignee: IntraBiotics Pharmaceuticals, Inc.
    Inventors: Robert I. Lehrer, Sylvia S. L. Harwig, Conway C. Chang, Chee L. Gu