In response to a Boston-based tech company’s latest allegations that Apple had pre-suit knowledge of its patented low-light imaging sensors, the multinational technology company pointed to an agreement that prohibited the plaintiff’s “effort to manufacture” those claims.

Last month, SiOnyx, a developer and manufacturer of ultra-low-light complementary metal-oxide-semiconductor image sensors and high-performance night vision cameras, filed an amended complaint to its patent infringement suit in U.S. District Court for the District of Massachusetts against Apple. In the initial complaint filed in September, SiOnyx accused Apple of wrongfully using its technology in the iPhone 15, which included at least one image sensor made by Sony.