Nintendo Co., Ltd. has officially applied for a new trademark in Japan for MELMETAL. The purposes behind this particular filing are related to video games and merchandise. To view images of the actual trademark, click here. Also known as the Hex Nut Pokémon, Melmetal is the evolved form of Meltan. Both of these Pokémon are Mythical Pokémon and can be found in Pokémon GO, Pokémon Let’s Go Pikachu and Let’s Go Eevee.
Source: Japanese Nintendo