Patents by Inventor Ralph E. Schriver

Ralph E. Schriver 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 having a proximal end with an outward extending lip
    Patent number: 8337456
    Abstract: A syringe includes a body having a distal end, a proximal end and a center section therebetween, a plunger movably disposed in the body, and a hollow alignment flange for orienting and manipulating the syringe.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: December 25, 2012
    Assignee: Medrad, Inc.
    Inventors: Ralph E. Schriver, Michael A. Spohn, Thomas P. Joyce, Herbert M. Grubic, John A. Haury
  • FLUID INJECTION APPARATUS HAVING ANTI-ROTATION ELEMENTS TO LIMIT SYRINGE PLUNGER ROTATION
    Publication number: 20090216192
    Abstract: The fluid injection apparatus is adapted for use with a syringe and includes an injector and a pressure jacket associated with the injector. The injector includes a drive piston having a plunger engaging end. The syringe includes a body and a plunger movably disposed within the body, the plunger having a proximal end adapted for engagement by the plunger engaging end of the drive piston. An anti-rotation connection is formed by complementary anti-rotation elements associated with the proximal end of the plunger and the plunger engaging end of the drive piston to limit rotation of the plunger within the syringe body.
    Type: Application
    Filed: May 8, 2009
    Publication date: August 27, 2009
    Applicant: MEDRAD, INC.
    Inventors: Ralph E. Schriver, Michael A. Spohn, Thomas P. Joyce, Herbert M. Grubic, Richard G. Critchlow