Patents by Inventor Mathilde Leboeuf

Mathilde Leboeuf 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).

  • Valve and choke stem packing assemblies
    Patent number: 10415719
    Abstract: A stem packing assembly including a first annular member defining a central axis, a second annular member defining a central axis coaxial with the central axis of the first annular member, and an annular energizing member defining a central axis coaxial with the central axis of the first annular member. In an embodiment, the stem packing assembly can have a leakage rate according to ISO 15848-1 of less than 1×10?4 mgs?1m?1 for at least 500 cycles at 160° C., and less than 1×10?4 mgs?1m?1 for at least 500 cycles at ?46° C. In another embodiment, the first annular member can include a PAEK, the second annular member can include a PTFE, and the annular energizing member at least partially includes a PTFE.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: September 17, 2019
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Mathilde Leboeuf, Jan Kustermans, Rojendra Singh, Christophe Valdenaire, Filip Rousseau, Herman M. Dubois
  • Meltprocessed fluoropolymer article and method for melt-processing fluoropolymers
    Patent number: 9156973
    Abstract: A polymer article includes a meltprocessable blend of a melt-viscid fluoropolymer and a liquid crystalline polymer. Methods are presented for preparing a meltprocessable blend from a melt-viscid fluoropolymer and liquid crystalline polymer.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: October 13, 2015
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Lakshmi Supriya, Christopher M. Comeaux, Mathilde Leboeuf
  • VALVE AND CHOKE STEM PACKING ASSEMBLIES
    Publication number: 20150102247
    Abstract: A stem packing assembly including a first annular member defining a central axis, a second annular member defining a central axis coaxial with the central axis of the first annular member, and an annular energizing member defining a central axis coaxial with the central axis of the first annular member. In an embodiment, the stem packing assembly can have a leakage rate according to ISO 15848-1 of less than 1×10?4 mgs?1m?1 for at least 500 cycles at 160° C., and less than 1×10?4 mgs?1m?1 for at least 500 cycles at ?46° C. In another embodiment, the first annular member can include a PAEK, the second annular member can include a PTFE, and the annular energizing member at least partially includes a PTFE.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 16, 2015
    Inventors: Mathilde Leboeuf, Jan Kustermans, Rojendra Singh, Christophe Valdenaire, Filip Rousseau, Herman M. Dubois
  • MELTPROCESSED FLUOROPOLYMER ARTICLE AND METHOD FOR MELT-PROCESSING FLUOROPOLYMERS
    Publication number: 20130085220
    Abstract: A polymer article includes a meltproces sable blend of a melt-viscid fluoropolymer and a liquid crystalline polymer. Methods are presented for preparing a meltproces sable blend from a melt-viscid fluoropolymer and liquid crystalline polymer.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 4, 2013
    Inventors: Lakshmi Supriya, Christopher M. Comeaux, Mathilde Leboeuf