Patents by Inventor Yousef Ahamdibeni

Yousef Ahamdibeni 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).

  • Polymer-bound phosphitylating reagents for the synthesis of organophosphorus compounds
    Patent number: 8193384
    Abstract: The synthesis and biochemical utility of modified oligonucleotides containing diphosphodiester internucleotide linkages. The synthesis of these compounds was carried out using diphosphitylating reagents. Oligonucleotides containing diphosphate diester bridges wherein said oligonucleotides are synthesized via a solid-phase synthesis strategy to form modified oligonucleotides. Diphosphitylating, triphosphitylating, tetraphosphitylating, ?-triphosphitylating, bifunctional diphosphitylating, bifunctional triphosphitylating, and bifunctional tetraphosphitylating reagents wherein, the phosphorus atoms are linked together through oxygen, sulfur, amino, or methylene groups and/or are substituted with chlorine, diisopropylamine and cyanoethoxy groups.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: June 5, 2012
    Assignee: Board of Governors for Higher Education, State of Rhode Island and Providence Plantation
    Inventors: Keykavous Parang, Yousef Ahamdibeni
  • MODIFIED OLIGONUCLEOTIDES CONTAINING DIPHOSPHODIESTER INTERNUCLEOTIDE LINKAGES
    Publication number: 20080207551
    Abstract: The synthesis and biochemical utility of modified oligonucleotides containing diphosphodiester internucleotide linkages. The synthesis of these compounds was carried out using diphosphitylating reagents. Oligonucleotides containing diphosphate diester bridges wherein said oligonucleotides are synthesized via a solid-phase synthesis strategy to form modified oligonucleotides. Diphosphitylating, triphosphitylating, tetraphosphitylating, ?-triphosphitylating, bifunctional diphosphitylating, bifunctional triphosphitylating, and bifunctional tetraphosphitylating reagents wherein, the phosphorus atoms are linked together through oxygen, sulfur, amino, or methylene groups and/or are substituted with chlorine, diisopropylamine and cyanoethoxy groups.
    Type: Application
    Filed: January 10, 2008
    Publication date: August 28, 2008
    Applicant: BOARD OF GOVERNORS FOR HIGHER EDUCATION, STATE OF RHODE ISLAND AND PROVIDENCE
    Inventors: Keykavous Parang, Yousef Ahamdibeni