Patents by Inventor Jean Guerineau

Jean Guerineau 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).

  • Syringe with self-retracting needle
    Patent number: 5267976
    Abstract: A syringe comprises a body (1) which carries the needle (6), a piston (13), a protective sheath and a spring (17) arranged between the sheath (14) and the body (1). A first and a second shoulder (21) on the outer wall of the body (1) co-operate with a first spur (19) of the sheath (14) to block the body (1) in a first direction, which a second, supple spur (20) and a third shoulder (24) block the body (1) in the other direction.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: December 7, 1993
    Assignee: Blue Star Corporation S.A.
    Inventors: Jean Guerineau, Dominique Poirier