IMAGE: Utility patent US 12,499,857 B1 issued Dec. 16, 2025. Design patents include: D1075895, D1073786, D1075896, D1054481, D1101024, D1064055. Multiple additional patents pending. The broader objective is to bring the tremolo to global mass market, through IP acquisition-licensing, or manufacturing partnerships. Learn more about the Rick Tooneâ„¢ tremolo system.