The U.K.'s patent system is “broken,” a group of small and medium-sized businesses said in a letter to Prime Minister David Cameron.

The letter, sent May 5, was signed by 32 companies that are members of Small Medium-sized Entity Innovation Alliance. In the letter, the organization said most small businesses in the U.K. “know only too well the failure of the patent system and have given up.”

Read the full Bloomberg story, “Red Hat, Google, Adidas, PepsiCo: Intellectual Property.”