Stephen A. Lefko

City:

River Forest, Illinois

Country:

United States

Published Applications:

Last publication date:

2011-09-29

Top Assignees for applications by Stephen A. Lefko

The entities that hold a legal rights for patent applications filed by inventor Lefko Stephen A.:

E.I. DU PONT DE NEMOURS AND COMPANY 1 Wilmington, DE United States
PIONEER HI BRED INTERNATIONAL INC 1 Johnston, IA United States

Recent patent applications by Lefko Stephen A.

Stephen A. Lefko from River Forest, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2011-09-29

US20110236319A1

Human necessities

Method of evaluating plant protection

InventorID:

3447153 ⎘