Patents by Inventor James J. Feuhrer

James J. Feuhrer 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).

  • Delivery device for injectable materials
    Patent number: 5540657
    Abstract: The invention pertains to a delivery device for controlling the injection of discrete quantities of fluid injectable materials through a conduit such as a hypodermic needle or a catheter. The delivery device is coupled to a pressurized driving fluid source, and the control means provides controlled passage of pressurized driving fluid into a syringe body to act against a piston which forces the fluid injectable material out the needle or catheter.In addition to the delivery device, the invention includes a needle depth guide which is preferably used in combination with the delivery device for cosmetic applications when a hypodermic needle is used to deliver a fluid injectable material to the dermis.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: July 30, 1996
    Assignee: Collagen Corporation
    Inventors: Christine M. Kurjan, Amy M. Droste, James J. Feuhrer, Robert J. Fisher, Dennis M. DeCamp