A patent is supposed to protect the person who invented something. In the version built over the last thirty years, it more often protects whoever bought the paper. There's an entire industry for this — patent trolls, formally called Non-Practicing Entities (NPEs) — that makes no products, builds no factories, and hires no engineers. It buys patents in bulk, often cheap from bankrupt companies or from lone inventors who can't afford to defend their own ideas, and then sends letters demanding payment for "infringement" from the people who actually built something. The logic is inverted: it isn't the inventor suing the corporation that stole an idea. It's a firm with zero working products suing — or simply threatening to sue — the people who made the product real. Here's the mechanics of a rent that dresses itself up as justice.
How the Machine Runs
The NPE business model is almost embarrassingly simple: no R&D, no manufacturing, revenue only from licensing fees and court wins — or, far more often, pre-trial settlements. Patents get bought wholesale, sometimes hundreds or thousands at a time, from companies liquidating in bankruptcy, or directly from individual inventors for a modest lump sum. What follows is lawyers whose job isn't to create anything, but to find products whose function can plausibly be squeezed under the wording of a patent someone already owns.
The largest and most-discussed example is Intellectual Ventures, founded by former Microsoft CTO Nathan Myhrvold. By various estimates, it has amassed tens of thousands of patents over the years — a portfolio comparable in size to those of the world's largest tech corporations, despite producing nothing itself. The company calls itself not a "troll" but "invention capital" — yet it's the name that comes up most often in arguments about where protecting an inventor ends and pure rent extraction begins. There's a fittingly ironic detail here: the term "patent troll" was popularized in the 1990s by attorney Peter Detkin, who was fighting these lawsuits while working in-house at Intel. Years later, he co-founded Intellectual Ventures — one of the companies most often called by the name he helped coin.
Eastern Texas: The Court Trolls Chose
For years, a wildly disproportionate share of U.S. patent lawsuits were filed in one specific place — the Eastern District of Texas, often in the small town of Marshall, where most of the parties had no connection whatsoever to either side of the dispute. That wasn't coincidence: local procedural rules, fast trial schedules, and a jury pool with a reputation for favoring plaintiffs made it the ideal venue for NPE suits. Firms chose the location not by geography of the dispute but by odds of winning — a practice known as venue shopping. It took a 2017 Supreme Court decision, TC Heartland v. Kraft Foods, to narrow the rules on where a patent suit can even be filed, and the share of cases in Eastern Texas dropped sharply afterward. It didn't disappear. It dropped. The industry simply found new convenient addresses.
From BlackBerry to the Scanner in the Corner
The abstraction turns concrete in a handful of well-documented cases.
NTP v. Research In Motion. NTP, which had never shipped a product, held patents on wireless push email delivery and sued the maker of BlackBerry. The threat of an injunction was serious enough that it could have shut down BlackBerry service for millions of users, including U.S. government officials and members of Congress. In 2006, RIM settled — reportedly for around $612.5 million — with a company that had built nothing.
MPHJ Technology, the "scanner troll." This firm sent thousands of small businesses across the country demand letters asking for roughly one thousand to fifteen hundred dollars, claiming that their office scanner's scan-to-email function infringed patents it owned. Most letters were never followed by an actual lawsuit — just the threat. The practice triggered investigations by several state attorneys general (Vermont among them) and a Federal Trade Commission complaint over deceptive practices.
Lodsys didn't sue Apple or Google, the companies that built the app platforms. It sued individual, often solo, app developers over the mechanics of in-app purchases. Personal Audio asserted a patent covering the very idea of "episodic content" and sued podcasters, including well-known comedian-podcasters, until the patent was invalidated following a challenge backed by the digital rights group EFF.
The Arithmetic of Extortion
Here's the detail that makes the mechanism click: trolls rarely expect to win at trial. They're counting on the arithmetic of legal costs. Fully defending a patent suit through trial can cost, by various estimates, anywhere from hundreds of thousands to several million dollars depending on the scale of the dispute. An NPE typically demands well below that threshold — tens of thousands of dollars, say. It's cheaper for a defendant to settle, even one confident it would win, than to fight and spend several times the settlement amount defending itself. A 2016 study by the U.S. Federal Trade Commission found that the overwhelming majority of NPE lawsuits end in early settlement — precisely because the cost of defense makes winning economically pointless, even when the underlying patent is legally weak.
That's the core of the mechanism: the outcome isn't decided by the strength of the argument, but by the cost of testing it in court. Law becomes a tool of extortion exactly where the price of proving innocence exceeds the price of admitting guilt.
Our record: a patent, by design, is a tool of Maat — fair reward for whoever put Sekhem, real life-force, real labor, into building something new. A patent troll produces no Sekhem. It doesn't invent, doesn't build, doesn't risk making a product. It feeds on the fear of legal costs, extracting rent from someone else's work without ever putting a working product on the other end. This is Shadow Maat in its purest form: a justice mechanism turned inside out, so the law protects not the inventor but whoever bought the paper and knows how to wave it.
What Changed — and What Didn't
The system has been patched, and some of it genuinely worked. The 2011 America Invents Act created Inter Partes Review, a faster, cheaper way to challenge a patent's validity directly at the patent office instead of federal court — it has invalidated a large number of the vague software patents the troll business ran on. The Supreme Court's 2014 decision in Alice Corp. v. CLS Bank sharply restricted the patentability of abstract ideas merely implemented on a generic computer — a direct hit on the huge category of "something, but on a screen, but over the internet" patents. TC Heartland, mentioned above, narrowed the choice of convenient courts.
But the industry didn't disappear. It adapted. Some litigation shifted to other jurisdictions with a similar reputation; new NPEs keep forming, buying up the patent portfolios of failed startups; large tech companies now spend meaningful budgets pre-emptively acquiring patent portfolios purely as defense against suits that haven't happened yet. The rent didn't go away. It changed addresses.
The patent system was built to give an inventor time to recoup the risk before someone copies the idea without asking. In the version trolls built, the same machinery judges not the idea but the ability to pay a lawyer. A real inventor can rarely afford that fight — which means the system built to protect them increasingly protects someone else instead. Noticing this doesn't fix the law by itself. But it means no longer confusing owning a patent with being right, or the size of a litigation budget with the strength of a claim. Whoever builds the real thing should know the name of whoever eats what's built, while building nothing of their own.