The pet leash belongs to the 18th category of U.S. trademark registration.

According to the US trademark registration rules, pet leashes belong to the 18th level "leather and artificial leather products, boxes and travel bags, umbrellas, whips, saddle pads, horse gear and animal equipment", specifically The classification number is 1801.

This category includes accessories for pets, such as pet utensils and equipment, including pet leashes. If you want to register a pet leash trademark in the United States, you should choose Category 18 to apply for registration.