Patents by Inventor Jarett D. Hoffman

Jarett D. Hoffman 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).

  • Artificial host egg for rearing trichogramma
    Patent number: 4418647
    Abstract: Trichogramma are reared in vitro on an artificial membrane having a curvilinear surface region, the outer convex surface of which is adapted to induce oviposition by the adult wasps, and the inner concave surface of which defines a cavity adapted for recovery of the oviposited eggs.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: December 6, 1983
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Jarett D. Hoffman