David Fedchenko

City:

Seattle, Washington

Country:

United States

Published Applications:

Last publication date:

2011-10-13

Recent patent applications by Fedchenko David

David Fedchenko from Seattle, US has applied for patents for these inventions. The list has both pending applications and granted patents:

PICTURE GRID TOOL AND SYSTEM FOR TEACHING MATH

PACKING WORKSPACE TOOL AND METHOD FOR MATH LEARNING

TILE TOOL AND SYSTEM FOR TEACHING MATH

NUMBER LINE TOOL AND METHOD

InventorID:

3574476 ⎘