quote:

Overall Performance and Trends
We focused significant efforts on developing, licensing and enforcing our patent portfolio during the first six months of fiscal 2013 and during the fiscal years
ended March 31, 2012 and 2011. While we have settled and licensed with a total of nineteen defendants to date, there is a reluctance of patent infringers to
negotiate and ultimately take a patent license without at least the threat of legal action. However, the majority of patent infringement contentions settle out of
court, based on the strength of the patent claims, validity, and persuasive evidence and clarity that the patent is being infringed. Although we believe we have
been successful in early licensing by demonstrating the strength, validity and clarity of our patent claims, prior court rulings and future events including new
court rulings and new patent reexaminations could have a significant positive or negative impact on future licensing activity.

end quote.

My question: if those 9 defendants already settled these defendants must have been pretty sure of their mistake and paid.

Are the 'big' ones we are suing right now so dumb that they think they can win/not pay or are above cases of something else ?