Patents by Inventor Christopher Shaffer

Christopher Shaffer 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).

  • Method for the chemical synthesis of oligonucleotides
    Publication number: 20060036090
    Abstract: The present invention features novel compositions, linkers, derivatized solid supports, and methods for the efficient solid phase synthesis of oligonucleotides, including RNA, DNA, RNA-DNA chimeras, and analogs thereof.
    Type: Application
    Filed: October 14, 2005
    Publication date: February 16, 2006
    Applicant: Sirna Therapeutics, Inc.
    Inventors: Chandra Vargeese, Christopher Shaffer, Weimin Wang
  • Method for the chemical synthesis of oligonucleotides
    Patent number: 6995259
    Abstract: The present invention features novel compositions, linkers, derivatized solid supports, and methods for the efficient solid phase synthesis of oligonucleotides, including RNA, DNA, RNA-DNA chimeras, and analogs thereof.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: February 7, 2006
    Assignee: Sirna Therapeutics, Inc.
    Inventors: Chandra Vargeese, Christopher Shaffer, Weimin Wang
  • Deprotection and purification of oligonucleotides and their derivatives
    Publication number: 20050215777
    Abstract: Method for synthesis, deprotection, and/or purification of nucleic acid molecules, such as oligonucleotides comprising one or more ribonucleotides. Such nucleic acid molecules include siRNA, dsRNA, ribozymes, antisense, and aptamers.
    Type: Application
    Filed: January 12, 2005
    Publication date: September 29, 2005
    Applicant: Sirna Therapeutics, Inc.
    Inventors: Chandra Vargeese, Christopher Shaffer, Keith Bowman