The document discusses trends in artificial intelligence investment and patent development. Private investment in AI has grown rapidly over the past five years, with key areas being machine learning, natural language processing, and medical technologies. While startups have received most funding, large companies like IBM, Microsoft and Google hold the majority of AI patents. The number of AI patent filings has increased over sevenfold in the past decade. Going forward, the author argues that further innovation will come from combinations of advances across different AI fields, rather than single technologies, creating new opportunities.