Patents by Inventor Nabil El Tayar

Nabil El Tayar 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: 7700314
    Abstract: PEG-IFN-? conjugates, where a PEG moiety is covalently bound to Cys17 of human IFN-?, are produced by a process of site specific PEGylation with a thiol reactive PEGylating agent. A pharmaceutical composition and a method for treating infections, tumors and autoimmune and inflammatory diseases are also provided. The invention further relates to a method for the stepwise attachment of PEG moieties in series to a polypeptide, and more particularly to IFN-?.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: April 20, 2010
    Assignee: Merck Serono SA
    Inventors: Nabil El-Tayar, Michael J. Roberts, Milton Harris, Wayne Sawlivich
  • Patent number: 7456201
    Abstract: The invention provides substituted pyrazole compounds, and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are useful for the treatment of mammalian infertility.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: November 25, 2008
    Assignee: Laboratoires Serono SA
    Inventors: Hitesh Shroff, Adulla P. Reddy, Giampiero De Luca, legal representative, Nadia Brugger, Catherine Jorand-Lebrun, Nabil El Tayar
  • Patent number: 7357925
    Abstract: PEG-IFN-? conjugates, where a PEG moiety is covalently bound to Cys17 of human IFN-?, are produced by a process of site specific PEGylation with a thiol reactive PEGylating agent. A pharmaceutical composition and a method for treating infections, tumors and autoimmune and inflammatory diseases are also provided. The invention further relates to a method for the stepwise attachment of PEG moieties in series to a polypeptide, and more particularly to IFN-?.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: April 15, 2008
    Assignee: Laboratoires Seronosa
    Inventors: Nabil El-Tayar, Michael J. Roberts, Milton Harris, Wayne Sawlivich
  • Patent number: 7268210
    Abstract: PEG-LHRH analog conjugates, where a PEG moiety is covalently bound to a serine residue of a LHRH analog, and methods for producing these conjugates are provided in the present invention. Also provided are a pharmaceutical composition and a method for treating pathologies in which LHRH analog administration is beneficial.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: September 11, 2007
    Assignee: Applied Research Systems ARS Holding N.V.
    Inventors: Nabil El-Tayar, Xuan Zhao, Michael D. Bentley
  • Publication number: 20070141620
    Abstract: PEG-IFN-? conjugates, where a PEG moiety is covalently bound to Cys17 of human IFN-?, are produced by a process of site specific PEGylation with a thiol reactive PEGylating agent. A pharmaceutical composition and a method for treating infections, tumors and autoimmune and inflammatory diseases are also provided. The invention further relates to a method for the stepwise attachment of PEG moieties in series to a polypeptide, and more particularly to IFN-?.
    Type: Application
    Filed: February 13, 2007
    Publication date: June 21, 2007
    Applicant: APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.
    Inventors: Nabil El-Tayar, Michael Roberts, Milton Harris, Wayne Sawlivich
  • Publication number: 20050222214
    Abstract: PEG-LHRH analog conjugates, where a PEG moiety is covalently bound to a serine residue of a LHRH analog, and methods for producing these conjugates are provided in the present invention. Also provided are a pharmaceutical composition and a method for treating pathologies in which LHRH analog administration is beneficial.
    Type: Application
    Filed: May 24, 2005
    Publication date: October 6, 2005
    Applicant: APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.
    Inventors: Nabil El-Tayar, Xuan Zhao, Michael Bentley
  • Patent number: 6914121
    Abstract: PEG-LHRH analog conjugates, where a PEG moiety is covalently bound to a serine residue of a LHRH analog either directly or via a bifunctional linker molecule, such as an amino acid, and methods for producing these conjugates are provided in the present invention. Also provided are a pharmaceutical composition and a method for treating pathologies in which LHRH analog administration is beneficial.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: July 5, 2005
    Assignee: Applied Research Systems Ars Holding N.V.
    Inventors: Nabil El-Tayar, Xuan Zhao, Michael D. Bentley
  • Patent number: 6914069
    Abstract: The invention provides substituted pyrazole compounds, and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are useful for the treatment of mammalian infertility.
    Type: Grant
    Filed: May 19, 2001
    Date of Patent: July 5, 2005
    Assignee: Applied Research Systems ARS Holding N.V.
    Inventors: Hitesh Shroff, Adulla P. Reddy, Susan A. Kiernan, Nadia Brugger, Catherine Jorand-Lebrun, Nabil El Tayar
  • Publication number: 20050095676
    Abstract: The present invention provides novel isolated ARP/BRP polynucleotides and the membrane-associated or secreted polypeptides encoded by the ARP/BRP polynucleotides. Also provided are ARP and BRP protein multimers. Further provided are the antibodies that immunospecifically bind to a ARP/BRP polypeptide or any derivative, variant, mutant or fragment of the ARP/BRP polypeptide, a ARP/BRP multimer polynucleotide or antibody. The invention additionally provides methods in which the ARP/BRP polypeptide, multimer, polynucleotide and antibody are utilized in the detection and treatment of a broad range of pathological states, e.g. reproductive disorder, as well as to other uses.
    Type: Application
    Filed: August 6, 2004
    Publication date: May 5, 2005
    Inventors: Nabil El Tayar, Robert Campbell, Christie Kelton, Chaomei He, Susan Kiernan
  • Publication number: 20050069914
    Abstract: The present invention provides novel isolated ARP/BRP polynucleotides and the membrane-associated or secreted polypeptides encoded by the ARP/BRP polynucleotides. Also provided are ARP and BRP protein multimers. Further provided are the antibodies that immunospecifically bind to a ARP/BRP polypeptide or any derivative, variant, mutant or fragment of the ARP/BRP polypeptide, a ARP/BRP multimer polynucleotide or antibody. The invention additionally provides methods in which the ARP/BRP polypeptide, multimer, polynucleotide and antibody are utilized in the detection and treatment of a broad range of pathological states, e.g. reproductive disorder, as well as to other uses.
    Type: Application
    Filed: March 25, 2004
    Publication date: March 31, 2005
    Inventors: Robert Campbell, Christie Kelton, Chaomei He, Susan Kiernan, Nabil El Tayar
  • Publication number: 20050026985
    Abstract: The invention provides substituted pyrazole compounds, and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are useful for the treatment of mammalian infertility.
    Type: Application
    Filed: August 19, 2004
    Publication date: February 3, 2005
    Inventors: Hitesh Shroff, Adulla Reddy, Nabil El Tayar, Nadia Brugger, Catherine Jorand-Lebrun, Giampiero de Luca
  • Publication number: 20040043002
    Abstract: PEG-IFN-&bgr; conjugates, where a PEG moiety is covalently bound to Cys17 of human IFN-&bgr;, are produced by a process of site specific PEGylation with a thiol reactive PEGylating agent. A pharmaceutical composition and a method for treating infections, tumors and autoimmune and inflammatory diseases are also provided. The invention further relates to a method for the stepwise attachment of PEG moieties in series to a polypeptide, and more particularly to IFN-&bgr;.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 4, 2004
    Applicant: APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.
    Inventors: Nabil El-Tayar, Michael J. Roberts, Milton Harris, Wayne Sawlivich
  • Publication number: 20040005554
    Abstract: The present invention provides novel isolated ARP/BRP polynucleotides and the membrane-associated or secreted polypeptides encoded by the ARP/BRP polynucleotides. Also provided are ARP and BRP protein multimers. Further provided are the antibodies that immunospecifically bind to a ARP/BRP polypeptide or any derivative, variant, mutant or fragment of the ARP/BRP polypeptide, a ARP/BRP multimer polynucleotide or antibody. The invention additionally provides methods in which the ARP/ BRP polypeptide, multimer, polynucleotide and antibody are utilized in the detection and treatment of a broad range of pathological states, e.g. reproductive disorder, as well as to other uses.
    Type: Application
    Filed: August 10, 2001
    Publication date: January 8, 2004
    Inventors: Nabil El Tayar, Robert K. Campbell, Chistie A. Kelton, Chaomei He
  • Publication number: 20030219786
    Abstract: The present invention provides novel isolated ARP/BRP polynucleotides and the membrane-associated or secreted polypeptides encoded by the ARP/BRP polynucleotides. Also provided are ARP and BRP protein multimers. Further provided are the antibodies that immunospecifically bind to a ARP/BRP polypeptide or any derivative, variant, mutant or fragment of the ARP/BRP polypeptide, a ARP/BRP multimer polynucleotide or antibody. The invention additionally provides methods in which the ARP/BRP polypeptide, multimer, polynucleotide and antibody are utilized in the detection and treatment of a broad range of pathological states, e.g. reproductive disorder, as well as to other uses.
    Type: Application
    Filed: February 6, 2003
    Publication date: November 27, 2003
    Applicant: Applied Research Systems ARS Holding N.V.
    Inventors: Nabil El Tayar, Susan Kiernan, Robert K. Campbell, Christie A. Kelton, Chaomei He
  • Patent number: 6638500
    Abstract: PEG-IFN-&bgr; conjugates, where a PEG moiety is covalently bound to Cys17 of human IFN-&bgr;, are produced by a process of site specific PEGylation with a thiol reactive PEGylating agent. A pharmaceutical composition and a method for treating infections, tumors and autoimmune and inflammatory diseases are also provided. The invention further relates to a method for the stepwise attachment of PEG moieties in series to a polypeptide, and more particularly to IFN-&bgr;.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: October 28, 2003
    Assignee: Applied Research Systems ARS Holding N.V.
    Inventors: Nabil El-Tayar, Michael J. Roberts, Milton Harris, Wayne Sawlivich
  • Publication number: 20020183257
    Abstract: PEG-LHRH analog conjugates, where a PEG moiety is covalently bound to a serine residue of a LHRH analog either directly or via a bifunctional linker molecule, such as an amino acid, and methods for producing these conjugates are provided in the present invention. Also provided are a pharmaceutical composition and a method for treating pathologies in which LHRH analog administration is beneficial.
    Type: Application
    Filed: June 28, 2002
    Publication date: December 5, 2002
    Applicant: APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.
    Inventors: Nabil El-Tayar, Xuan Zhao, Michael D. Bentley
  • Patent number: 6482925
    Abstract: The invention concerns a purified polypeptide corresponding to a mutated form of the soluble LAG-3 protein or of one of its fragments comprising the extra-cellular domain D1 and D2.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: November 19, 2002
    Assignee: Applied Research Systems ARS Holding N.V.
    Inventors: Nabil El Tayar, Bertrand Huard, Renato Mastrangeli, Frederic Triebel
  • Publication number: 20020132844
    Abstract: The invention provides substituted pyrazole compounds, and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are useful for the treatment of mammalian infertility.
    Type: Application
    Filed: May 19, 2001
    Publication date: September 19, 2002
    Inventors: Hitesh Shroff, Adulla P. Reddy, Nabil El Tayar, Nadia Brugger, Catherine Jorand-Lebrun
  • Patent number: 6433135
    Abstract: PEG-LHRH analog conjugates, where a PEG moiety is covalently bound to a serine residue of a LHRH analog either directly or via a bifunctional linker molecule, such as an amino acid, and methods for producing these conjugates are provided in the present invention. Also provided are a pharmaceutical composition and a method for treating pathologies in which LHRH analog administration is beneficial.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: August 13, 2002
    Assignee: Applied Research Systems ARS Holding N.V.
    Inventors: Nabil El-Tayar, Xuan Zhao, Michael D. Bentley
  • Patent number: 6372207
    Abstract: The in vivo effect of Type I interferon (IFN) can be prolonged by administering the interferon in the form of a complex with an IFN binding chain of the human interferon &agr;/&bgr; receptor (IFNAR). Such a complex also improves the stability of the IFN and enhances the potency of the IFN. The complex may be a non-covalent complex or one in which the IFN and the IFNAR are bound by a covalent bond or a peptide. When bound by a peptide bond in the form of a fusion protein, the IFN may be separated from the IFNAR by means of a peptide linker. Such a fusion protein may be produced by recombinant DNA technology. Storing IFN in the form of such a complex improves the storage life of the IFN and permits storage under milder conditions than would otherwise be possible.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: April 16, 2002
    Assignee: Applied Research Systems ARS Holding N.V.
    Inventors: Mark Tepper, Mark Cunningham, David Sherris, Nabil El Tayar, Sean McKenna