Patents by Inventor Khalil Arar

Khalil Arar 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: 7615629
    Abstract: The present invention relates to novel methods and novel solid support materials for the tandem synthesis of two or more different oligonucleotides on the same solid support in one synthetic run. The methods involve novel support preparations comprised of two or more types of orthogonally protected anchor groups. Subsequent to the selective removal of the first of the respective protective groups, the first oligonucleotide is assembled on the deblocked anchor groups according to standard methods, preferably via phosphoramidite chemistry. Following the capping of said first oligonucleotide, the anchor groups blocked by a second type of protective group are selectively liberated and serve as the starting point for the assembly of a second oligonucleotide, and so forth. After completion of all the syntheses on the solid support, the oligonucleotides are released from the solid support and deprotected at the nucleobases, using standard methods.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: November 10, 2009
    Assignee: Sigma-Aldrich Co.
    Inventor: Khalil Arar
  • Publication number: 20070269803
    Abstract: The present invention relates to novel methods for detecting or quantifying nucleic acid analytes through their interactions with a nucleic acid probe or a pair of nucleic acid probes, wherein the probe or the pair of probes is comprised of at least one monomeric LNA moiety and two or more dyes, wherein at least one of said dyes is fluorescent. Preferably the probe or the pair of probes is comprised of a combination of two dyes, wherein either both are fluorescent dyes that coactively function as the donor dye and the acceptor dye of a FRET system, or wherein one of said dyes is a fluorescent dye and the other is a corresponding non-fluorescent quencher dye. Included in the present invention are novel nucleic acid probes for use in the detection and quantification of analytes according to the methods of this invention.
    Type: Application
    Filed: June 18, 2004
    Publication date: November 22, 2007
    Inventor: Khalil Arar
  • Publication number: 20060149046
    Abstract: The present invention relates to novel methods and novel solid support materials for the tandem synthesis of two or more different oligonucleotides on the same solid support in one synthetic run. The methods involve novel support preparations comprised of two or more types of orthogonally protected anchor groups. Subsequent to the selective removal of the first of the respective protective groups, the first oligonucleotide is assembled on the deblocked anchor groups according to standard methods, preferably via phosphoramidite chemistry. Following the capping of said first oligonucleotide, the anchor groups blocked by the second type of protective group are selectively liberated and serve is the starting point for the assembly of a second oligonucleotide, and so forth. After completion of all of the syntheses on the solid support, the oligonucleotides are released from the solid support and deprotected at the nucleobases, using standard methods.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 6, 2006
    Applicant: PROLIGO LLC
    Inventor: Khalil Arar