Coordinated trademark classes cross over within the standard NCL class categories because they relate to one another. Most businesses diversify their activities to improve their market share. Your trademark application should reflect your activity in these associated industries to protect your brand name. Choose coordinated classes that not only refine your registration application, but allow for any potential future expansion of your commercial activities. These related classes can be used during a comprehensive trademark search to find conflicts before the submission of your application to the USPTO.