David VAN SLINGERLAND

City:

Toronto

Country:

Canada

Published Applications:

Last publication date:

2021-09-30

Recent patent applications by VAN SLINGERLAND David

David VAN SLINGERLAND from Toronto, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2021-09-30

US20210298381A1

Human necessities

FACE MASK

InventorID:

5199440 ⎘