How about this passage...

Overall, our results show that transaction costs associated with patent litigation loom large, and rulings on the merits by the courts concerning patent validity, patent infringement, and remedies for infringement (i.e., injunctive relief or damages) are rare, expensive, and not pursued to completion by most litigants. Instead, most patent cases settle fairly quickly (about 12-15 months) after the filing of the complaint, thereby reducing the actual cost of patent litigation considerably.

We can only hope for more filings ASAP !