trademarks themselves are classified into 45 categories. Whole grains are 38- rice, the 3th convenience food in 45 categories of trademarks. Flour:

334: cereal products

357: edible flour

357: coarse flour ground from cereals

358: bean meal

359: corn flour

359: corn flour

359.

38: hulled grain for human consumption

391: corn (ground)

392: corn (baked)

31: hulled barley

315: crushed barley

3119: meter. Hulled oats

3143: hulled oats

3161: flakes (cereal products)

3163: all kinds of ground and steamed wheat (coarse flour)

3197: corn flakes

3198: corn meal

37. Powder (powder)

You can register these trademarks of whole grains. There are too many specific trademarks. You can go to the social standard website to inquire, hoping to help you. . .