Patents by Inventor James C. Pert

James C. Pert 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).

  • Platelet freezing bag
    Patent number: 4365629
    Abstract: A platelet freezing bag made of pliable plastic material has two needle ports designed to accept a syringe needle for transferring platelet concentrate and diluent plasma into the bag and a large draining port. The ports are protected and closed by pull-apart seals. The draining port is separated from the platelet receiving compartment by a push-apart seal which can be opened by exerting gentle pressure on the contents of the bag.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: December 28, 1982
    Assignee: Hedbergska Stiftelsen
    Inventors: James H. Pert, Peter Unger, Hervie L. Harris, James C. Pert