Patents by Inventor Frederic P. Field

Frederic P. Field 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).

  • Infusion apparatus
    Patent number: 5080652
    Abstract: A liquid infuser apparatus includes an elastic sleeve mounted on an elongated member and within a spherical housing to enable it to expand naturally to maintain a constant pressure over the infusion period. An alternate embodiment includes a holding reservoir that may be pre-filled, and a pressure reservoir that is loaded from the holding reservoir preparatory to infusion.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: January 14, 1992
    Assignee: Block Medical, Inc.
    Inventors: Gregory E. Sancoff, Frederic P. Field