Patents Assigned to Agence National de Valorisation de la Recherche (ANVAR)
  • Patent number: 4497074
    Abstract: Organ prostheses are manufactured starting from a support preformed in the shape of the prosthesis to be formed on which a sol giving on cooling a gel enabling a surface state approximating to that of a liquid-air interface is deposited, a hardenable flexible material compatible with body tissues is deposited thereon and the prosthesis removed from the mould. Ureter, bladder, vascular and cardiac prostheses made by this method are disclosed.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: February 5, 1985
    Assignee: Agence National de Valorisation de la Recherche (ANVAR)
    Inventors: Pierre Rey, Jacqueline Leandri, Clement Abbou
  • Patent number: 4401659
    Abstract: A polymer of peptidic type formed by a chain formed from aminoacyl residues preferably derived of at least one of the amino-acid residues selected from the class consisting of .alpha.,.gamma.-diaminobutyric acid, ornithine, lysine, homo-lysine, of which the lateral amino functions portionally carry peptide branches of which the aminoacyl residues are preferably derived of those selected from the class consisting of alanine, glycine, .alpha.-aminobutyric acid, valine, leucine and proline, the above-said peptide polymer having an average molecular weight comprised between about 50,000 and 250,000, and to which are bound covalently, muramyl-peptide units of which the two first aminoacid residues bound to the muramyl group are stereoisomers of the D series, the second aminoacid residue having the structure of the glutamic acid.This product is useful as anti-infectious agent.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: August 30, 1983
    Assignee: Agence National de Valorisation de la Recherche (ANVAR)
    Inventors: Pierre Lefrancier, Monique Parant, Francoise Audibert, Louis Chedid, Jean Choay, Michael Sela, Edgar Lederer
  • Patent number: 4335111
    Abstract: The invention relates to new compounds associating peptidyl or aminoacyl residues to lipophilic groups and pharmaceutical compositions containing said new compounds.The compounds according to the invention have the general formula: ##STR1## A preferred compound is:1-O (L-alanyl-D-isoglutaminyl-L-alanyl)-glycerol-3-mycolate.These compounds are useful as anti-infectious agents.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: June 15, 1982
    Assignee: Agence National de Valorisation de la Recherche (ANVAR)
    Inventors: Pierre Lefrancier, Edgar Lederer, Jean Choay, Louis Chedid
  • Patent number: 4233849
    Abstract: A method for measuring the fatigue of a test-piece subjected to mechanical stress. The test-piece is stressed and pulses of ultrasonic waves are transmitted along the surface region of the stressed area and received. The acoustic attentuation of the waves, due to the fatigue caused by the stress, is measured and provides an indication of the amount of fatigue.
    Type: Grant
    Filed: February 6, 1979
    Date of Patent: November 18, 1980
    Assignee: Agence National de Valorisation de la Recherche (ANVAR)
    Inventors: Andre Defebvre, Jean Pouliquen
  • Patent number: 3962054
    Abstract: A process for the treatment of cellulosic textile materials comprising the following successive steps: effecting grafting of the cellulose textile material with a monomer which, when formed into a polymer, has the characteristics of an elastomer at ambient temperature; effecting irradiation treatment by ionizing radiation of the grafted cellulose material so as to achieve cross-linking of the grafts formed, thus leading to permanent crease resistant properties; and effecting post-irradiation treatment by storage enabling the cross-linking to be completed.
    Type: Grant
    Filed: October 26, 1973
    Date of Patent: June 8, 1976
    Assignee: Agence National de Valorisation de la Recherche (ANVAR)
    Inventors: Daniel Wattiez, Roger Chatelin, Paul Fabre