I think you are confusing trademark with patent. Trademarks are names or stylistic art providing distinctiveness to a business, such as a logo with or without the trade name. The shape or orientation of components of the block-clock don't qualify as a trademark whatsoever. If you trademarked blockclock and not btcclock, you are SOL. If anything NVK's concern falls under copyright, and copyright only protects actual artwork such as the specific design, exact dimensions, shape and color of the blockclock. All three are in the category of intellectual property under US federal statutes, but trademark is specific to allowing a company to protect an identifying mark they use to distinguish their product or business activity. NVK's beef appears to be that someone else made a cheaper blockclock, called it something else and didn't infringe on any of his intellectual property whatsoever, so unless he can prove otherwise he can cry harder for all I care.