Patents by Inventor Frederick W. Plapp, Jr.

Frederick W. Plapp, Jr. 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).

  • Insecticidal compositions comprising N'-aryl-N-methylformamidines and 3-phenoxybenzyl carboxylates
    Patent number: 4152454
    Abstract: Compositions comprising, in combination, N'-aryl-N-methylformamidines and 3-phenoxybenzyl carboxylates exhibit synergistic insecticidal activity. The novel compositions are exemplified and their use for controlling insects is demonstrated.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: May 1, 1979
    Assignee: FMC Corporation
    Inventor: Frederick W. Plapp, Jr.