Companies over a certain size should be required to show that they have evaluated a patent claim from a small entity in good faith. That is, if they get a claim that they are infringing, they should be required to show in court that they looked at it seriously and tried to find out if they were infringing or not. Failure to do so would should trigger some financial penalties. The intent is to prevent a big company from relying on the cost of litigation and the resource mismatch to simply blow off legit patent assertions.
Patent Reform modest proposal.