Patents by Inventor Jacques Leng

Jacques Leng 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).

  • Crystallization of chemical species/polymorphs and microfluidic apparatus and screening methodology therefor
    Patent number: 8053242
    Abstract: The crystallization of chemical species/polymorphs comprises forming droplets of a solution of a substance with optionally different concentrations of said substance in an inert phase; producing and storing the droplets in at least one storage microchannel (1); forming crystals in all droplets; increasing the temperature in order to induce the dissolution of at least a portion of the crystals in at least some droplets; and analyzing the crystallization and dissolution process.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: November 8, 2011
    Assignee: Rhodia Operations
    Inventors: Mathieu Joanicot, Philippe Laval, Jacques Leng, Jean-Baptiste Salmon
  • CRYSTALLIZATION OF CHEMICAL SPECIES/POLYMORPHS AND MICROFLUIDIC APPARATUS AND SCREENING METHODOLOGY THEREFOR
    Publication number: 20100058845
    Abstract: The crystallization of chemical species/polymorphs comprises forming droplets of a solution of a substance with optionally different concentrations of said substance in an inert phase; producing and storing the droplets in at least one storage microchannel (1); forming crystals in all droplets; increasing the temperature in order to induce the dissolution of at least a portion of the crystals in at least some droplets; and analyzing the crystallization and dissolution process.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 11, 2010
    Applicants: RHODIA OPERATIONS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
    Inventors: Mathieu Joanicot, Philippe Laval, Jacques Leng, Jean-Baptiste Salmon
  • Microfluidic Evaporators And Determining Physical And/Or Chemical Properties Of Chemical Compounds Therewith
    Publication number: 20090221082
    Abstract: Microfluidic devices having a membrane allowing evaporation are useful for conducting a measurement or observation of compounds introduced therein.
    Type: Application
    Filed: October 5, 2006
    Publication date: September 3, 2009
    Applicants: Rhodia Operations, Centre National De La Recherché Scientifique
    Inventors: Mathieu Joanicot, Jacques Leng, Armand Ajdari, Patrick Tabeling