Donat Frei

City:

Appenzell

Country:

Switzerland

Published Applications:

Last publication date:

2018-05-24

Top Assignees for applications by Donat Frei

The entities that hold a legal rights for patent applications filed by inventor Frei Donat:

Donat Frei from Appenzell, CH has applied for patents for these inventions. The list has both pending applications and granted patents:

Abrasive particle with at most three surfaces and one corner

Abrasive particle with at most three surfaces and one corner

InventorID:

2196157 ⎘