Patents by Inventor Fernand Navas

Fernand Navas 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).

  • Intervertebral stabilization device incorporating dampers
    Patent number: 5540688
    Abstract: An intervertebral stabilization device is disclosed, made in the form of a damper adapted to resist elastically, on the one hand, an elongation and, on the other hand, an axial compression without buckling, as well as of at least two implants anchored on two adjacent vertebrae.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: July 30, 1996
    Assignee: Societe "PSI"
    Inventor: Fernand Navas
  • Extra-discal inter-vertebral prosthesis for controlling the variations of the inter-vertebral distance by means of a double damper
    Patent number: 5480401
    Abstract: A prosthesis with double damper performing the function of intervertebral stabilizer which comprises at least two identical elements assembled together and comprising elastic bodies for regulating the bending-stretching movement between two vertebrae so as to approach as closely as possible the physiological course of a discal movement.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: January 2, 1996
    Assignee: PSI
    Inventor: Fernand Navas
  • Application of an improved damper to an intervertebral stabilization device
    Patent number: 5375823
    Abstract: An improved damper, of the type comprising elements for progressively resisting, in exponential manner, the advance of a piston under the effect of a force of axial compression, which functions as a stop opposing any displacement of the piston beyond a predetermined value, in an intervertebral stabilization device.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: December 27, 1994
    Assignee: Societe PSI
    Inventor: Fernand Navas