Patents by Inventor Valérie Cheynet-Sauvion

Valérie Cheynet-Sauvion 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).

  • RNA-dependent RNA polymerase functioning preferably on a RNA matrix and promoter-dependent transcription process with said RNA-dependent RNA polymerase
    Patent number: 7595180
    Abstract: RNA may be transcribed using a nucleotide reagent as the promoter. The reagent may enable RNA to be transcribed without sequence specification and without protein cofactors, by means of an RNA polymerase that is known to be DNA-dependent such as the RNA polymerase of the phage T7, or by means of new, mutated RNA polymerase with the ability to synthesize a transcription product of polynucleotide matrix with a higher yield when the matrix is RNA than when the matrix is DNA. This type of RNA polymerase can be obtained by effecting mutations on a coding gene for a wild-type RNA polymerase, and then by selecting the mutated RNA polymerase with the ability. The invention can be applied notably to the detection, synthesis or quantification of RNA.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: September 29, 2009
    Assignee: Biomerieux
    Inventors: Valérie Cheynet-Sauvion, Nadège Arnaud-Barbe, Guy Oriol, William McAllister, Bernard Mandrand, François Mallet
  • RNA-dependent RNA polymerase functioning preferably on a RNA matrix and promoter-dependent transcription process with said RNA-dependent RNA polymerase
    Publication number: 20050069933
    Abstract: RNA may be transcribed using a nucleotide reagent as the promoter. The reagent may enable RNA to be transcribed without sequence specification and without protein cofactors, by means of an RNA polymerase that is known to be DNA-dependent such as the RNA polymerase of the phage T7, or by means of new, mutated RNA polymerase with the ability to synthesize a transcription product of polynucleotide matrix with a higher yield when the matrix is RNA than when the matrix is DNA. This type of RNA polymerase can be obtained by effecting mutations on a coding gene for a wild-type RNA polymerase, and then by selecting the mutated RNA polymerase with the ability. The invention can be applied notably to the detection, synthesis or quantification of RNA.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 31, 2005
    Applicant: BIO MERIEUX
    Inventors: Valerie Cheynet-Sauvion, Nadege Arnaud-Barbe, Guy Oriol, William McAllister, Bernard Mandrand, Francois Mallet
  • Method of amplifying an RNA target sequence using an RNA polymerase functioning preferably on RNA template
    Patent number: 6828127
    Abstract: Disclosed is a process for transcribing RNA using a nucleotide reagent as the promoter. Such a reagent enables any type of RNA to be transcribed without sequence specification and without protein cofactors, by means of an RNA polymerase that is known to be DNA-dependent such as the RNA polymerase of the phage T7, or by means of new, mutated RNA polymerase with the ability to synthesize a transcription product of a polynucleotide matrix with a higher yield when the matrix is RNA than when said matrix is DNA. This type of RNA polymerase can be obtained by effecting mutations on a coding gene for a wild-type RNA polymerase, and then by selecting the mutated RNA polymerase with said ability. The invention can be applied notably to the detection, synthesis or quantification of RNA.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: December 7, 2004
    Assignee: Bio Merieux
    Inventors: Valérie Cheynet-Sauvion, Nadége Arnaud-Barbe, Guy Oriol, William T. McAllister, Bernard Mandrand, François Mallet
  • RNA-DEPENDENT RNA POLYMERASE FUNCTIONING PREFERABLY ON RNA MATRIX AND PROMOTER-DEPENDENT TRANSCRIPTION PROCESS WITH SAID RNA- DEPENDENT RNA POLYMERASE
    Publication number: 20020119449
    Abstract: Disclosed is a process for transcribing RNA using a nucleotide reagent as the promoter. Such a reagent enables any type of RNA to be transcribed without sequence specification and without protein cofactors, by means of an RNA polymerase that is known to be DNA-dependent such as the RNA polymerase of the phage T7, or by means of new, mutated RNA polymerase with the ability to synthesize a transcription product of a polynucleotide matrix with a higher yield when the matrix is RNA than when said matrix is DNA. This type of RNA polvmerase can be obtained by effecting mutations on a coding gene for a wild-type RNA polvmerase and then by selecting the mutated RNA polymerase with said abilitv The invention can be applied notably to the detection, synthesis or quantification of RNA.
    Type: Application
    Filed: December 8, 1999
    Publication date: August 29, 2002
    Inventors: VALERIE CHEYNET-SAUVION, NADEGE ARNAUD-BARBE, GUY ORIOL, WILLIAM MCALLISTER, BERNARD MANDRAND, FRANCOIS MALLET