Anthropic and OpenAI sued for allegedly infringing inventors' neural network patents

Flinn Artificial Intelligence Technologies sued Anthropic and OpenAI in Delaware federal court on Thursday, alleging Claude and ChatGPT infringe five neural-network patents filed in 2015 and 2016 by computer scientists Steven Flinn and Naomi Moneypenny. The complaints say both companies built their businesses on reasoning, retrieval, memory, coding, agentic and multimodal capabilities covered by the patents and seek unspecified damages. Patent suits against the two labs have been rare compared with copyright cases.