As if the rocketing evolution of technology isn't presenting enough challenges to inventors under patent law, the Supreme Court has done its part, too. I just finished reading Graham Moore's novel "The Last Days of Night," where titans of the late 1800s and early 1990s Thomas Edison, George Westinghouse, and Nikola Tesla "clashed with sparks flying over AC and DC electrical power systems," a corny description suggested by my AI editor. Having read the book, it was fun to speak with modern...