The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 1998
Filed:
May. 28, 1996
Applicant:
Inventors:
Thomas H Czapla, Urbandale, IA (US);
Scott A Mundell, West Des Moines, IA (US);
Nandha Kumar Balasubramanian, Des Moines, IA (US);
Assignee:
Pioneer Hi-Bred International, Inc., Des Moines, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
4241951 ;
Abstract
The invention comprises a substances or plurality of substances extracted from the seeds of buffalo grass, Buchloe dactyloides. The crude extract was found to comprise one or a plurality of substances having molecular weights of less than 20 kDa which are natural insecticides against corn rootworm. Bioassays show corn rootworm mortality of up to 100% when larvae are fed a diet containing crude or purified buffalo grass extract.