Patents by Inventor Manh Chu

Manh Chu 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: 5989032
    Abstract: Dental post to be fitted, particularly, within a dental cavity (3) comprises axial and longitudinal stiffening elements (7). At least a portion of the stiffening elements which is to be fixed within the cavity (3) comprises, at least at its periphery, a curable product (9) capable of yielding under an applied force so as to conform to the walls of the cavity in which it is located. The product is curable after being introduced into the cavity.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: November 23, 1999
    Assignee: Societe de Recherches Techniques Dentaires R.T.D.
    Inventors: Marc Reynaud, Pierre-Luc Reynaud, Manh Chu
  • Patent number: 5890904
    Abstract: A tooth post made of composite material includes a central core (3) made of a resin matrix wherein are embedded fibers (5) which give the post (1) its main mechanical properties. The central core (3) is wrapped in a sheath (6) consisting of at least one layer of fiber (7) made of radio-opaque material.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: April 6, 1999
    Assignees: Marc Reynaud, Pierre-Luc Reynaud
    Inventors: Marc Reynaud, Pierre-Luc Reynaud, Manh Chu
  • Patent number: 5797748
    Abstract: The present invention relates to a tooth prothesis made of composite material and to a process for fabricating said prothesis. The prothesis is characterized in that it is comprised of a central core (3), made of at least one bunch of fibers (5), for example glass fibers, the core being wrapped by a sheath (7) comprised of at least one layer of oriented, isotropic or non isotropic fibers (8a, 8b, 8c) , the fibers (5) of the central core (3) and the fibers of the sheath (7) being embedded in a curable resin, the fibers (8a, 8b, 8c) of the sheath (7) being oriented in a given angle with respect to the longitudinal axis (yy') of the prothesis (1), so as to adjust to desired respective values the longitudinal and transverse traction resistance of the prothesis (1).
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: August 25, 1998
    Assignees: Marc Reynaud, Pierre-Luc Reynaud
    Inventors: Marc Reynaud, Pierre-Luc Reynaud, Manh Chu