Your difficulty comes because it's now a matter of case law. Ongoing and undecided case law. So make sure "case law" is in your search. (Note European law, etc,

Your difficulty comes because it's now a matter of case law. Ongoing and undecided case law. So make sure "case law" is in your search. (Note European law, etc, is VERY different.) Status one year ago: http://www.ipwatchdog.com/2014/07/14/supreme-courts-latest-patent-case-and-software-patentability/id=50321/ http://www.ipwatchdog.com/2014/07/14/supreme-courts-latest-p... An update: "When the United States Court of Appeals for the Federal Circuit decided CLS Bank v. Alice Corporation, all the important questions that we thought might be answered remained completely and totally unanswered. There were only 10 judges who sat on the en banc tribunal and no more than 5 judges signed on to any one opinion." http://www.ipwatchdog.com/2015/01/09/a-software-patent-setback-alice-v-cls-bank/id=53460/ http://www.ipwatchdog.com/2015/01/09/a-software-patent-setba... A more comprehensive list of cases. https://en.wikipedia.org/wiki/Category:Software_patent_case_law https://en.wikipedia.org/wiki/Category:Software_patent_case_... Wish I had better news for you.