Patents by Inventor Hong Khanh Nguyen

Hong Khanh Nguyen 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: 8741593
    Abstract: This invention has as its object a method for releasing a product by subjecting a compound of Formula (II?): R?7R?8(HX)C1-C2(YH)R?9R?10 to a chemical oxidation that cleaves the bond C1-C2 to obtain the product. In the compound of Formula (II?): R?7 to R?10, which are identical or different, correspond to a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted functional group; X and Y, which are identical or different, are an oxygen atom, a sulfur atom, or an amine of Formula —NR11R12, wherein R11 is a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group, and R12 is not a hydrogen atom. The invention also has as its object a method for releasing a product that comprises, before the chemical oxidation stage, a first step for preparing the compound of Formula (II?). The released product can be a volatile molecule or an active substance or else a specific product.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: June 3, 2014
    Assignee: Proteus
    Inventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen
  • Patent number: 7595181
    Abstract: The present invention relates to a newly identified hydrolase from thermophilic microorganisms having thermostable properties, and more specifically, to a novel thermostable hydrolase showing high activity at high temperatures.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: September 29, 2009
    Assignee: Proteus S.A.
    Inventors: Burghard Grüning, Geoffrey Hills, Thomas Veit, Christian Weitemeyer, Olivier Favre-Bulle, Fabrice Lefevre, Hong-Khanh Nguyen, Gilles Ravot
  • Publication number: 20070099257
    Abstract: This invention has as its object a method for releasing a product by subjecting a compound of Formula (II?): R?7R?8(HX)C1-C2(YH)R?9R?10 to a chemical oxidation that cleaves the bond C1-C2 to obtain the product. In the compound of Formula (II?): R?7 to R?10, which are identical or different, correspond to a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted functional group; X and Y, which are identical or different, are an oxygen atom, a sulfur atom, or an amine of Formula —NR11R12, wherein R11 is a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group, and R12 is not a hydrogen atom. The invention also has as its object a method for releasing a product that comprises, before the chemical oxidation stage, a first step for preparing the compound of Formula (II?). The released product can be a volatile molecule or an active substance or else a specific product.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 3, 2007
    Applicants: Proteus, Universite de Berne
    Inventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen
  • Publication number: 20060008887
    Abstract: The present invention relates to processes for the production of acyl compounds using an esterase having thermostable properties, and to products of such processes.
    Type: Application
    Filed: September 30, 2004
    Publication date: January 12, 2006
    Inventors: Burghard Gruning, Geoffrey Hills, Thomas Veit, Christian Weitemeyer, Olivier Favre-Bulle, Fabrice Lefevre, Hong-Khanh Nguyen, Gilles Ravot
  • Publication number: 20050112644
    Abstract: The present invention relates to a newly identified hydrolase from thermophilic microorganisms having thermostable properties, and more specifically, to a novel thermostable hydrolase showing high activity at high temperatures.
    Type: Application
    Filed: September 30, 2004
    Publication date: May 26, 2005
    Inventors: Burghard Gruning, Geoffrey Hills, Thomas Veit, Christian Weitemeyer, Olivier Favre-Bulle, Fabrice Lefevre, Hong-Khanh Nguyen, Gilles Ravot
  • Patent number: 6864049
    Abstract: The invention discloses a method for producing a hybridization complex whose stability is substantially independent of the base composition of two hybridized nucleic acid molecules, consisting in contacting a first nucleic acid molecule with a second nucleic acid molecule under conditions enabling the formation of a specific hybridization complex. The invention is characterized in that at least one of the four types of bases contained in the sequence of the first and/or of the second nucleic acid molecule is a modified base having pairing properties close to those of the natural base it replaces, such that at least one of the two types of the base pair contained in the composition of the complex comprises a modified base and in that the totality of the base pairs contained in the composition of the said complex has a like stability.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: March 8, 2005
    Assignee: Appligene-Oncor S.A.
    Inventors: Thuong Nguyen, Ulysse Asseline, Hong Khanh Nguyen, Maurice Durand, Jean-Claude Maurizot, Daniel Dupret, Edwige Bonfils
  • Publication number: 20030199017
    Abstract: This invention has as its object a method for releasing a product by subjecting a compound of Formula (II′): R′7R′8(HX)C1-C2(YH)R′9R′10 to a chemical oxidation that cleaves the bond C1-C2 to obtain the product. In the compound of Formula (II′): R′7 to R′10, which are identical or different, correspond to a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted functional group; X and Y, which are identical or different, are an oxygen atom, a sulfur atom, or an amine of Formula -NR11R12, wherein R11 is a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group, and R12 is not a hydrogen atom. The invention also has as its object a method for releasing a product that comprises, before the chemical oxidation stage, a first step for preparing the compound of Formula (II′). The released product can be a volatile molecule or an active substance or else a specific product.
    Type: Application
    Filed: December 2, 2002
    Publication date: October 23, 2003
    Applicant: Proteus
    Inventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen