Software Patents Prompt Litigation, GAO Reports

Software patents are the biggest reason behind a rise in litigation over inventions, especially against companies that use the technology, the U.S. Government Accountability Office found. Its study, required under a law passed in 2011 that overhauled the U.S. patent system, said the revisions and court rulings have made it easier to invalidate questionable patents and limited damages that can be collected on a minor feature.