Oura Health is totally right! Trademarks are based on first use. However, they fail to acknowledge that it applies to the first use in each category. There are 45 different classes of goods, and Oura Ring has six of them, mainly within jewelry and technology. On the other hand, our trademarks cover fabric-based products including home goods and apparel. We were the first ones to use our OURA mark in these categories, long before Oura Health.