Non-practicing entities — companies that buy patents not to build products but to extract licensing fees through litigation threats — have become a permanent fixture of American innovation policy. Studies estimate they cost the U.S. economy $20 to $80 billion a year in legal fees, settlements, and lost R&D. They aren’t a glitch in the patent system. They are exactly what a patent system that rewards filing volume, allows broad claims, and makes defense ruinously expensive will produce. The trolls are following the rules. The rules are the problem.
The economics make trolling rational
Defending a patent suit through trial typically costs $2 to $5 million, and judgments can be wildly larger. Settling for $50,000 to $500,000 — the typical NPE demand — is almost always cheaper. NPEs know this. They write demand letters with settlement numbers calibrated below litigation cost, send them in bulk, and collect from companies whose lawyers do the obvious math. The plaintiff has nothing to lose: no product to enjoin, no counter-suit risk because they don’t make anything to be sued over, and often a litigation funder absorbing the downside. The system rewards mass-suing because the system makes individual defense uneconomic.
Vague patents are the raw material
Many troll-asserted patents are software or business-method patents granted in the late 1990s and 2000s with claims so broad they read on virtually any modern web feature. The PTO grants under-resourced; examiners spend hours, not weeks, on each application. Patents emerge that arguably shouldn’t have, and once granted they carry a presumption of validity that defendants must overcome at their own expense. The 2014 Alice v. CLS Bank decision narrowed software patentability and eliminated some of the worst patents, but plenty remain in circulation, traded among NPEs and asserted strategically.
Reform keeps almost happening
Congressional patent-reform efforts have made progress — inter partes review at the PTO is genuinely useful for invalidating bad patents — but bigger reforms keep stalling. Loser-pays fee shifting, tighter pleading requirements, and venue restrictions have all been proposed and defanged. The reason is straightforward: patent owners, including legitimate ones like universities and pharma, benefit from a strong patent system and resist anything that weakens enforcement. Reformers haven’t figured out how to surgically weaken trolls without weakening the rest. The TC Heartland decision did move venue rules in defendants’ favor, ending the worst forum-shopping in the Eastern District of Texas. Trolls adapted.
What targets can do today
Companies hit with troll demands have better tools than they used to: defensive patent pools, RPX-style aggregators, prior-art search firms, and PTO challenges. Refusing to settle on principle is expensive. Settling to make it go away funds the next demand letter. The pragmatic middle is documenting the demand, joining defensive coalitions, and pushing for legislative reform through industry groups.
The takeaway
Patent trolls aren’t a moral failure of bad actors gaming a good system. They’re the predictable output of a system whose design — broad claims, expensive defense, asymmetric risk — makes trolling profitable. Until the design changes, the trolls will too, and the cost will keep showing up in everyone else’s R&D budget.
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