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PatentBrief

Patent Litigation

Non-Practicing Entities

Patent assertion entities, demand letters, and how eBay, TC Heartland, and IPR changed the economics of patent troll litigation.

FAQ

What is a non-practicing entity and what makes them controversial?

Non-practicing entities occupy a complex and debated role in the patent system: DEFINITION: a non-practicing entity (NPE) is an entity that holds patents but does not manufacture the patented invention or provide the patented service; SPECTRUM OF NPEs: LEGITIMATE NPEs: individual inventors; universities and research institutions (MIT; Stanford; Caltech); small R&D companies that develop and license technology; companies in a different stage of commercialization (holding patents before building products); PAEs (PATENT ASSERTION ENTITIES): sometimes called 'patent trolls' in the pejorative; entities that acquire patents primarily (or solely) to assert them against operating companies for licensing revenue; often have no product development history; acquire patents on the secondary market at low cost; send demand letters and file lawsuits against many companies in a technology space; THE CONTROVERSY: CRITICS: PAEs do not contribute to innovation; the patents they assert often have questionable validity; demand letters target companies that will settle rather than litigate (even if they have valid defenses); litigation asymmetry — NPE has nothing to lose; defendants bear all product and reputation risk; divert innovation dollars to legal fees; DEFENDERS: patent rights should be enforceable by anyone who holds them regardless of whether they manufacture; some NPEs enable inventors to monetize inventions without the capital for commercialization; university licensing programs (important for technology transfer) are technically NPEs; the system SHOULD allow anyone to enforce a valid patent; STATISTICS: NPEs represent the majority of US patent litigation by raw case count; many NPE suits settle pre-trial for nuisance value ($50,000-$500,000) regardless of merits; companies that defend NPE suits rather than settle often prevail — but at high cost.

How did eBay v. MercExchange and TC Heartland change NPE litigation?

Two Supreme Court decisions fundamentally altered the NPE litigation landscape: eBay INC. v. MERCEXCHANGE (S.Ct. 2006): PRE-eBay: courts typically granted permanent injunctions as a matter of course after a patent holder won an infringement case; an injunction could shut down an entire product line — which gave NPEs enormous settlement leverage (even with questionable patents); eBay HOLDING: a court must apply the traditional four-factor test before granting a permanent injunction: (1) the plaintiff suffered an irreparable injury; (2) remedies at law (monetary damages) are inadequate; (3) the balance of hardships favors an injunction; (4) the public interest would not be disserved by an injunction; IMPACT ON NPEs: NPEs — who do not make products — cannot easily show irreparable injury (they are not losing sales); they typically receive only monetary damages, not injunctions; this dramatically reduced NPE settlement leverage — no more threats to shut down a product line; TC HEARTLAND v. KRAFT HEINZ (S.Ct. 2017): PRE-TC HEARTLAND: NPEs filed the vast majority of their suits in plaintiff-friendly venues — particularly the Eastern District of Texas (high jury awards; fast trials; plaintiff-favorable local rules; minimal summary judgment practice); 44% of ALL US patent cases were filed in E.D. Texas in 2015; TC HEARTLAND HOLDING: 28 U.S.C. § 1400(b) requires patent cases to be filed where the defendant is 'incorporated' or has a 'regular and established place of business'; defendants cannot be sued simply because they sell products in the district; IMPACT ON NPEs: NPEs can no longer automatically file in E.D. Texas against any company that sells products there; tech defendants now typically must be sued in Delaware (state of incorporation) or in their home district (California; Washington; New York); the elimination of the Eastern District of Texas as a universal venue is one of the largest structural changes to NPE litigation in decades.

What are the most effective defenses against NPE patent assertions?

Defending against NPE assertions requires a multi-track strategy: TRACK 1 — INVALIDITY CHALLENGES: IPR PETITION (most powerful tool): file within one year of service of complaint; institute IPR and stay the district court litigation; ~40-50% of reviewed claims are canceled; NPE has no product to cross-assert; FTO analysis shows the patent is weak → leverage for early settlement; EX PARTE REEXAMINATION (if IPR time bar passed): no estoppel; anonymous filing; cheaper than IPR; CBMR (COVERED BUSINESS METHOD REVIEW): available for financial services business method patents; broader § 101 grounds available (until 2020 sunset, now largely unavailable); TRACK 2 — NON-INFRINGEMENT ANALYSIS: do a rigorous claim chart analysis BEFORE settlement; many NPE demand letters are template-based with shallow analysis; often the accused product does not actually meet all claim elements under proper claim construction; if non-infringement is clear, litigation becomes viable; TRACK 3 — FEE-SHIFTING (OCTANE FITNESS): Octane Fitness v. Icon Health (S.Ct. 2014): a district court can award attorney fees (35 U.S.C. § 285) in 'exceptional cases'; the standard is lower than previously required (no need to show objectively baseless and subjectively bad faith separately); courts have exercised § 285 discretion in NPE cases where: the patent was clearly invalid; the demand was unreasonably broad; litigation conduct was abusive; fee-shifting risk changes NPE settlement calculus — especially for small NPEs; TRACK 4 — VENUE CHALLENGES: post-TC Heartland, challenge improper venue immediately via motion to dismiss or transfer; many NPE filings are in courts where defendants can seek transfer to more favorable venues; TRACK 5 — COALITION DEFENSE: LOT Network; Open Invention Network; Unified Patents; defensive aggregators acquire high-risk patents before NPEs do; consider joining before receiving demands;

What organizations and tools help companies manage NPE risk proactively?

Several organizations and services help companies defend against NPE assertions systematically: LOT NETWORK (License on Transfer): WHAT IT IS: a nonprofit network where member companies provide automatic cross-licenses to other members whenever a member's patent is transferred to a PAE; HOW IT WORKS: if Company A (LOT member) sells a patent to an NPE, all other LOT members automatically get a license to that patent; the NPE CANNOT assert the patent against LOT members; MEMBERSHIP: 3,000+ companies including Google; Microsoft; Ford; Amazon; Uber; many tech companies; COST: tiered by company size ($1,000-$20,000/year); IMPACT: significantly reduces the risk of patents acquired from LOT member companies becoming NPE weapons; OPEN INVENTION NETWORK (OIN): FOCUS: Linux/open-source software ecosystem; companies join and cross-license Linux System patents; reduces NPE risk for open-source implementations; UNIFIED PATENTS: acquires and challenges patents in high-NPE-activity technology areas; files IPR petitions on behalf of members; membership provides cost-effective NPE defense for SMEs; RPX CORPORATION: defensive patent aggregator; acquires patents that are likely to be asserted against its members; acts as a 'patent shield'; PATENT MONITORING TOOLS: Derwent Innovation; PatSnap; AcclaimIP: monitor new patent filings, assignments to known NPEs, and IPR petition activity; can identify potential NPE threats before demand letters arrive; DEFENSIVE PUBLICATION: for innovations that are difficult or not worthwhile to patent but should not be owned by NPEs: publish in technical journals; submit to IP.com or Defensive Patent License database; creates prior art that prevents others from obtaining patents on the technology; BUILDING A DEFENSIVE PATENT PORTFOLIO: strong patent portfolios deter NPEs (cross-assertion creates mutual assured destruction); acquire patents in core technology areas; join cross-licensing networks.

How should a company respond when it receives an NPE demand letter?

A systematic response to NPE demand letters maximizes the chance of a favorable outcome: IMMEDIATE STEPS (first 2 weeks): PRESERVE LITIGATION HOLD: issue a litigation hold for all relevant documents immediately; NPE may file suit; evidence preservation is mandatory from the moment you receive notice of potential litigation; CONFIRM RECEIPT AND DEADLINE: check if the letter sets a response deadline; most do — NPEs use short deadlines to pressure quick settlements; DO NOT RESPOND SUBSTANTIVELY WITHOUT LEGAL REVIEW: your response (including admissions about product features) can be used against you; ENGAGE PATENT COUNSEL: retain patent litigation counsel immediately (even if only for advice); EVALUATION PHASE (2-6 weeks): PATENT ANALYSIS: obtain the patent(s) identified; review the claims; conduct claims construction for accused products; identify the prior art (file date; earliest priority date; what was known before?); PRODUCT ANALYSIS: build claim charts comparing the patent claims to your product; is every claim element present? INVALIDITY SEARCH: prior art search for the asserted claims; what does IPR potential look like? BUSINESS ANALYSIS: how significant is the product at issue? what is the settlement value vs. litigation cost? DECISION FRAMEWORK: SETTLE (nuisance value) WHEN: settlement cost < defense cost; product is tangential; NPE has a credible claim; DEFEND WHEN: patent is clearly invalid or not infringed; significant product at stake; NPE has a history of meritless assertions; fee-shifting may be available; RESPONSE STRATEGY: if defending: do NOT ignore demand letters — laches may be limited post-SCA Hygiene (S.Ct. 2017), but unexplained silence can have other adverse consequences; consider a noninfringement and invalidity letter if your analysis is strong; COUNTEROFFER: if settlement is desired, analyze comparable licenses (Georgia-Pacific factors); NPEs often accept significantly lower amounts than demanded when the defendant credibly threatens IPR and demonstrates non-infringement.

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