In June 2013, the President of the U.S.A. Barack Obama announced measures to limit the phenomenon of “patent trolling”, which is the use of patents for the sole purpose of restricting competition and to obtain money through legal action or through agreements following threats of such actions. Yesterday came the announcement of the opening of a section of the United States Patent and Trademark Office (USPTO) website, which is the organism that handles patents, containing information useful for anyone who has been accused of violating someone else’s patents.