Take a look at THIS article as my reference :)
Recap of this Business Model:
- A litigation process that is very costly for the defendants
- Patents that are overly broad or vague so that they can be interpreted to cover commonly used technologies (NOTE: Given cost, many defendants are just willing to pay the troll so they can avoid the lawsuit)
Supreme Court Help:
- Defendant can recover legal costs if the judge sees plaintiff’s suit as frivolous
- Made it easier to challenge validity of vague patents
- Ex: Alice Corp v. CLS Bank
- Case about patents on existing business method on a computer
- Ruling: “doing it on a computer” wasn’t patentable
Effect:
- Declining lawsuits, notable drop after the ruling of the Alice court case
- There are still more lawsuits that there were two decades ago