Patents by Inventor Tristram Carpenter

Tristram Carpenter 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).

  • Multipurpose syringe
    Patent number: 4562844
    Abstract: A multipurpose syringe for obtaining a blood sample and for storing and shipping it having a barrel (10), a plunger (32), and a rod (36), and means (40) (42) (44) for locking the plunger in retracted position.
    Type: Grant
    Filed: November 27, 1984
    Date of Patent: January 7, 1986
    Assignee: Jett Labs, Inc.
    Inventors: Tristram Carpenter, Michael Gorker