Patents by Inventor Ayman El-Faham

Ayman El-Faham 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).

  • Spirooxindole-copper complex as novel efficient anticorrosion agent for C-steel
    Patent number: 11840545
    Abstract: New spirooxindole compounds are described herein, as well as the use of such spirooxindole compounds in forming copper complexes that act as efficient anticorrosion agents for C-steel. Also described are methods for forming the new spirooxindole compounds as well as anti-corrosion coatings containing the spirooxindole-copper complexes, CuL.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: December 12, 2023
    Assignee: KING FAISAL UNIVERSITY
    Inventors: Hassan H. Hammud, Waleed A. S. Aljamhi, Ayman El-Faham, Assem Barakat, Ihab Shawish, Nadeem S. Sheikh, Khurshid Ayub
  • Proton acceptor iminium/carbocation-type coupling agents
    Patent number: 8524898
    Abstract: Novel iminium-type coupling agents containing proton acceptors in their iminium moiety, which can be used beneficially as coupling agents in various chemical polypeptide and/or polynucleotide syntheses, and are particularly useful as yield enhancing and racemization suppressing coupling agents for use in peptide syntheses, are disclosed. Further disclosed are a process of preparing such iminium-type coupling agents and their use in the preparation of polypeptides and/or polynucleotides.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: September 3, 2013
    Assignee: Luxembourg Bio Technologies Ltd.
    Inventors: Fernando Albericio, Ayman El-Faham, Yoav Luxembourg, Ariel Ewenson
  • PROTON ACCEPTOR IMINIUM/CARBOCATION-TYPE COUPLING AGENTS
    Publication number: 20100144588
    Abstract: Novel iminium-type coupling agents containing proton acceptors in their iminium moiety, which can be used beneficially as coupling agents in various chemical polypeptide and/or polynucleotide syntheses, and are particularly useful as yield enhancing and racemization suppressing coupling agents for use in peptide syntheses, are disclosed. Further disclosed are a process of preparing such iminium-type coupling agents and their use in the preparation of polypeptides and/or polynucleotides.
    Type: Application
    Filed: May 15, 2008
    Publication date: June 10, 2010
    Applicant: LUXEMBOURG BIO TECHNOLOGIES LTD.
    Inventors: Fernando Albericio, Ayman El-Faham, Yoav Luxembourg, Ariel Ewenson
  • Uronium and immonium salts for peptide coupling
    Patent number: 6825347
    Abstract: The present invention is directed to salts of the formula: or N-oxides thereof, and their use in preparing an amide.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: November 30, 2004
    Assignee: Research Corporation Technologies, Inc.
    Inventors: Louis A. Carpino, Hideko Imazumi, Ayman El-Faham
  • Uronium and immonium salts for peptide coupling
    Publication number: 20030125561
    Abstract: The present invention is directed to salts of the formula: 1
    Type: Application
    Filed: May 21, 2002
    Publication date: July 3, 2003
    Inventors: Louis A. Carpino, Hideko Imazumi, Ayman El-Faham