Someones made a nifty script called, “litig-o-meter”, and searched the published opinions on google scholar for litigations involving Microsoft, Google and Apple. Though the data which has been mined and the emperical analysis is limited only to written and published judicial opinions and not cases which are actually filed (and most of which are settled), it does present an interesting data set. One of the many great insights which come out of the data include:
Google is a much younger company than Microsoft, so it is hard to say anything we see is really a long term trend. Nonetheless, they clearly get sued much more often than they sue others. This is a strong contrast with the average company profile displayed by Microsoft and demonstrates that offensive litigation—for example patent trolling—is not a major component of Google’s business strategy.
Read more here.