Roger S. Sprankle

City:

Paso Robles, California

Country:

United States

Published Applications:

Last publication date:

2006-09-07

Recent patent applications by Sprankle Roger S.

Roger S. Sprankle from Paso Robles, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2006-09-07

US20060196184A1

Mechanical engineering

Helical screw expander for power production from solar, geothermal, and industrial processes

InventorID:

4693976 ⎘