Patents by Inventor Christian Langlois

Christian Langlois 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: 8535721
    Abstract: The subject of the invention is pharmaceutical microspheres containing, as active principle, a mixture of valproic acid and of one of its pharmaceutically acceptable salts in combination with a matrix vehicle selected from glycerol esters, hydrogenated oils, esterified polyethylene glycols, waxes and their mixtures.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: September 17, 2013
    Assignee: Sanofi-Synthelabo
    Inventors: Christian Langlois, Jean-Yves Lanne
  • Publication number: 20070251715
    Abstract: Method for protecting a cable or a pipe which includes the following stages: a geotextile strip is shaped like a sheath around the cable or pipe; and, the strip is fixed around the cable or pipe. The strip includes a single sheet of at least one layer of nonwoven material. The nonwoven material can be a multilayer material with a central layer of a nonwoven material with a low density and high mechanical strength and at least one outer layer covering it on at least one side, and advantageously on both sides, of higher-density nonwoven material. The geotextile can be heat-sealable and the fixing can in particular be carried out by heat-sealing 141.
    Type: Application
    Filed: August 12, 2005
    Publication date: November 1, 2007
    Inventors: Jean Dalaine, Christian Langlois
  • Publication number: 20060263437
    Abstract: The subject of the invention is pharmaceutical microspheres containing, as active principle, a mixture of valproic acid and of one of its pharmaceutically acceptable salts in combination with a matrix vehicle selected from glycerol esters, hydrogenated oils, esterified polyethylene glycols, waxes and their mixtures.
    Type: Application
    Filed: February 21, 2006
    Publication date: November 23, 2006
    Inventors: Christian Langlois, Jean-Yves Lanne
  • Publication number: 20030157177
    Abstract: The subject of the invention is pharmaceutical microspheres containing, as active principle, a mixture of valproic acid and of one of its pharmaceutically acceptable salts in combination with a matrix vehicle selected from glycerol esters, hydrogenated oils, esterified polyethylene glycols, waxes and their mixtures.
    Type: Application
    Filed: October 15, 2002
    Publication date: August 21, 2003
    Applicant: Sanofi-Synthelabo, a corporation of France.
    Inventors: Christian Langlois, Jean-Yves Lanne
  • Publication number: 20020001598
    Abstract: The subject of the invention is pharmaceutical microspheres containing, as active principle, a mixture of valproic acid and of one of its pharmaceutically acceptable salts in combination with a matrix vehicle selected from glycerol esters, hydrogenated oils, esterified polyethylene glycols, waxes and their mixtures.
    Type: Application
    Filed: July 23, 1999
    Publication date: January 3, 2002
    Inventors: CHRISTIAN LANGLOIS, JEAN-YVES LANNE
  • Patent number: 3934963
    Abstract: This automatic machine is intended for machining workpieces in order to reduce their want-of-balance, notably in the case of small or medium series of rotary parts. This machine, adapted to balance dynamically these parts, comprises a measuring station and a plurality of machining stations disposed on a common circle, and a central rotary device having a vertical axis and disposed centrally of said stations for transferring simultaneously all the parts from one station to the next station in the same direction of rotation.
    Type: Grant
    Filed: October 16, 1973
    Date of Patent: January 27, 1976
    Assignee: Regie Nationale des Usines Renault
    Inventor: Christian Langlois