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Patent troll

Patent troll is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Patent troll rather than just read about it. In short: In international law and business, patent trolling or patent hoarding is a categorical or pejorative term applied to a person or company that attempts to enforce patent rights against accused infringers far beyond the patent's actual value or contribution to the prior art, often through hardball legal tactics (frivolous litigation, vexatious litigation, strategic lawsuits against public participation (SLAPP), chilli…

Patent troll — main illustration
Patent troll — illustration

Key takeaways

  • Patent troll belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Patent troll to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Patent troll from memory before moving on to harder problems.

Reference excerpt

In international law and business, patent trolling or patent hoarding is a categorical or pejorative term applied to a person or company that attempts to enforce patent rights against accused infringers far beyond the patent's actual value or contribution to the prior art, often through hardball legal tactics (frivolous litigation, vexatious litigation, strategic lawsuits against public participation (SLAPP), chilling effects, etc.). Patent trolls often do not manufacture products or supply services based upon the patents in question. However, some entities (such as universities and national laboratories) that do not practice their asserted patent may yet not be considered "patent trolls" when they license their patented technologies on reasonable terms in advance. Other related concepts include patent holding company (PHC), patent monetization entity (PME), patent assertion entity (PAE), and non-practicing entity (NPE), which may or may not be considered a "patent troll" depending on the position they are taking and the perception of that position by the public. While in most cases the entities termed "trolls" are operating within the bounds of the legal system, their aggressive tactics achieve outcomes contrary to the origins of the patent system, as a legislated social contract to foster and protect innovation; the rapid rise of the modern information economy has put the global intellectual property system under more strain. Patent trolling has been less of a problem in Europe than in the United States because Europe has a "loser pays costs" regime. In contrast, the US generally employs the American rule, under which each party is responsible for paying its own attorney's fees. However, after the US Supreme Court's decision in Octane Fitness, LLC v. ICON Health & Fitness, Inc. on April 29, 2014, it is now easier for courts to award costs for frivolous patent lawsuits.

Etymology and definition The term patent troll was used at least once in 1993, albeit with a slightly different meaning, to describe countries that file aggressive patent lawsuits. The 1994 educational video, The Patents Video also used the term, depicting a green troll guarding a bridge and demanding fees. The origin of the term patent troll has also been variously attributed to Anne Gundelfinger, or Peter Detkin, both counsel for Intel, during the late 1990s. Patent troll is currently a controversial term, susceptible to numerous definitions, none of which are considered satisfactory from the perspective of understanding how patent trolls should be treated in law. Definitions often include a party that does one or more of the following:

Purchases a patent, often from a bankrupt firm, and then sues another company by claiming that one of its products infringes on the purchased patent; Enforces patents against purported infringers without itself intending to manufacture the patented product or supply the patented service; (some argue this could be true even for the original inventor, whereas others draw a clear distinction on this point) Enforces patents but has no manufacturing or research base; Focuses its efforts solely on enforcing patent rights; or Asserts patent infringement claims against non-copiers or against a large industry that is composed of non-copiers. The term "patent pirate" has been used to describe both patent trolling and acts of patent infringement. Related expressions are "non-practising entity" (NPE) (defined as "a patent owner who does not manufacture or use the patented invention, but rather than abandoning the right to exclude, an NPE seeks to enforce its right through the negotiation of licenses and litigation"), "patent assertion entity" (PAE), "non-manufacturing patentee", "patent shark", "patent marketer", "patent assertion company", and "patent dealer". Confusion over the usage of the term "patent troll" is clear in research and media reporting. In 2014, PricewaterhouseCoopers published research into patent litigation including a study of non-practicing entities including individual inventors and non-profit organizations such as universities. In quoting that research, media outlets such as The Washington Post labeled all non-practicing entities as patent trolls.

… excerpt ends here. Continue reading the full article.

Illustrations

Patent troll illustration
Patent troll: Early Woodward light bulb patent purchased by Thomas Edison to preclude challenges
Early Woodward light bulb patent purchased by Thomas Edison to preclude challenges

Worked examples

Example 1 — a first encounter with Patent troll

Start with the simplest possible case. Write down what Patent troll claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Patent troll before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Patent troll ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Patent troll

In research
Patent troll appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Patent troll in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Patent troll is common in secondary-school and first-year university syllabi. It links to neighbouring topics Criticism of intellectual property, Discovery and invention controversies, Patent law, so understanding it makes those chapters shorter.
In everyday life
Look for Patent troll outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Patent troll in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Patent troll means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Patent troll out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Patent troll in simple terms?

In international law and business, patent trolling or patent hoarding is a categorical or pejorative term applied to a person or company that attempts to enforce patent rights against accused infringers far beyond the patent's actual value or contribution to the prior art, often through hardball le…

Why does Patent troll matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Patent troll?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Patent troll.

Tags

  • Criticism of intellectual property
  • Discovery and invention controversies
  • Patent law
  • Patent monetization companies of the United States
  • Pejorative terms

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