Airguard Seed Brakes are protected by the following Patents

US Patent: US 8,757,074 B2

Canada Patent: 2,768,196

Australia Patent: 2012267180

South Africa Patent: 2013/09215

China Patent: 201280037506.9

Eurasia Patent: 201301351

Ukraine Patent: 113735

Brazil: BR1120130316926

Patents pending in European Union.