Patents by Inventor Yves Le Guen

Yves Le Guen 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).

  • Derivatives of the sinapinic acid
    Patent number: 9463338
    Abstract: The object of the present invention is a compound of general formula (I) as well as to its pharmaceutically acceptable salt, and to the use of this compound for cosmetic and pharmaceutical applications.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: October 11, 2016
    Assignee: PHARMASYNTHESE
    Inventors: Pierre-Yves Le Roy, Yves Le Guen
  • DERIVATIVES OF THE SINAPINIC ACID
    Publication number: 20150353469
    Abstract: The object of the present invention is a compound of general formula (I) as well as to its pharmaceutically acceptable salt, and to the use of this compound for cosmetic and pharmaceutical applications.
    Type: Application
    Filed: January 7, 2014
    Publication date: December 10, 2015
    Inventors: Pierre-Yves LE ROY, Yves LE GUEN
  • Fibre-optic connector
    Patent number: 6264371
    Abstract: The invention relates to a fiber-optic connector (1) comprising a socket (2) and a plug (4) which are intended to be mated in order to join two optical cables. The connector according to the invention includes at least two sealing members, one of them being an interfacial sealing member (12) put under compression when the plug (4) and the socket (2) are being mated.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: July 24, 2001
    Assignee: Framatome Connectors International
    Inventors: Jean-Max Badeau, Pierre-Yves Le Guen
  • Easy-to-clean optical connector
    Patent number: 6238099
    Abstract: In order to simplify operations of cleaning an optical connector (1, 4), especially the female part (4) of the latter, provision is made, upon disconnection, for ferrules (5) set into the female cavities (9) of the socket to be brought flush (7) with the socket by sliding a sleeve (6) which constitutes it. It is demonstrated that, by acting in this way, it is possible to carry out more frequent and simpler cleaning operations on the optical connectors.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: May 29, 2001
    Assignee: Framatome Connectors International
    Inventors: Pierre-Yves Le Guen, Fabrice Lecomte
  • Method for preparing thienylacetic acids
    Patent number: 4180510
    Abstract: A method for preparing thienylacetic acid and its derivatives is disclosed, wherein a glyoxylic ester is made to react with hydrazine, and after with potash. Advantageously, the glyoxylic ester is prepared by condensation of a monoester monochloride of oxalic acid upon a thiophenic derivative, in the presence of titanium chloride.The so obtained products are useful as organic synthesis intermediaries for various products of pharmaceutical type.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: December 25, 1979
    Assignee: Produits Chimiques Auxiliaires et de Synthese, P.C.A.S.
    Inventors: Yves Le Guen, Georges Thiault