David Donenfeld

City:

Mill Valley, California

Country:

United States

Published Applications:

Last publication date:

2008-05-29

Recent patent applications by Donenfeld David

David Donenfeld from Mill Valley, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2008-05-29

US20080123884A1

Human necessities

Passive hearing aid device

InventorID:

4182371 ⎘