William David Schaefer

City:

Grand Rapids, Michigan

Country:

United States

Published Applications:

Last publication date:

2005-03-24

Recent patent applications by Schaefer William David

William David Schaefer from Grand Rapids, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2005-03-24

US20050062620A1

Electricity

Multi-layer solid state keyboard

InventorID:

4810637 ⎘