Trade marks can be registered, but need not be. The use of the trade mark in normal commerce is sufficient to establish rights. However, the registration of the

Trade marks can be registered, but need not be. The use of the trade mark in normal commerce is sufficient to establish rights. However, the registration of the trade mark can confer additional benefits. This is the general rule in most common law jurisdictions. As uMatrix was distributed to users through the extensions platfrom, this is already sufficient to classify as commercial use.