Drawing on his experience of fifteen years in patent law and seven years in angel investing, he builds patent portfolios that enable startups to increase value and attract funding. His clients have attracted investments from Accel, Andreessen Horowitz, Bessemer, Founders Fund, Greylock, Kleiner Perkins, and Sequoia. As a Consulting Professor for Stanford University, Jeffrey teaches the course “Patent Prosecution” in the law school, and the course “Patent Law and Strategy for Innovators and Entrepreneurs” in the engineering school.