About 13 Trademarks found that are owned by Chen Yuyan

Dishware; Dustbins; Aerosol dispensers, not for medical purposes; Animal-activated pet feeders that include dispensers for releasing pet toy feeder balls with pet food and pet treats therein; Cake moulds; Candy boxes; Cleaning sponges; Cosmetic brushes; Electric toothbrushes; Kitchen containers; Kitchen mitts; Make-up removing appliances; Thermal insulated containers for food or beverages; Toilet brushes; Vacuum bottles

The wording Grittoz has no meaning in a foreign language.

The mark consists of the stylized design of a "?" above three concentric circles all appearing above the wording "WIN HOW" with concentric circles appearing within the letter "O".