The Gemini founders Cameron and Taylor won a patent claim that aims to settle exchange-traded products (ETPs) holding cryptocurrencies. The company defined a system that can transactions for ETPs holding cryptocurrencies, like BTC, XRP, ETH and other. In March 2017, the US Securities and Exchange Commission rejected brothers’ proposal 2017 that sought to list a bitcoin-tied ETF on the Bats BZX Exchange, citing risk associated with the trading and regulatory uncertainty.