Inducement of Infringement

Section 271(b) imposes liability on those who encourage others to infringe: STATUTORY TEXT — 35 U.S.C. § 271(b): 'Whoever actively induces infringement of a patent shall be liable as an infringer'; THREE REQUIRED ELEMENTS: (1) DIRECT INFRINGEMENT BY ANOTHER: someone must actually practice all elements of a patent claim (direct infringement); the inducer is not necessarily the direct infringer; without underlying direct infringement there can be no inducement; (2) KNOWLEDGE OF THE PATENT: the inducing party must know of the patent that is being infringed; this knowledge must exist at the time of the inducing acts; after-acquired knowledge (learning of the patent after the inducing conduct) does not retroactively create pre-existing inducement liability but creates ongoing liability going forward; (3) INTENT TO CAUSE INFRINGEMENT: the inducing party must specifically intend that the third party commit acts that constitute patent infringement; SPECIFIC INTENT REQUIRED: DSU Medical Corp. v. JMS Co. (Fed. Cir. 2006 en banc): the mere knowledge that acts will be performed that happen to infringe is insufficient; the inducer must specifically intend to cause infringement; HOW INDUCEMENT TYPICALLY ARISES: PRODUCT LABELING: a manufacturer labels its product with instructions that direct users to perform steps that infringe a method patent; INSTRUCTIONS FOR USE: software companies provide tutorials or APIs that instruct users to use the software in an infringing way; ADVERTISING: advertising that promotes an infringing use of a product; CONTRACTING: a company contracts with another company to perform infringing acts; DISTRIBUTION: distributing products known to infringe when used as instructed; WHO CAN BE LIABLE: manufacturers; distributors; software companies; advertisers; anyone who actively encourages another person to infringe a patent.

Two Supreme Court decisions shaped the mens rea standard for induced infringement: GLOBAL-TECH APPLIANCES v. SEB S.A. (S.Ct. 2011): THE QUESTION: whether induced infringement under § 271(b) requires actual knowledge of the patent or whether deliberate indifference would suffice; THE HOLDING: actual knowledge of the patent (or its equivalent) is required for induced infringement; deliberate indifference alone is insufficient; BUT: WILLFUL BLINDNESS SATISFIES KNOWLEDGE: the Court adopted the willful blindness doctrine: a defendant who: (a) subjectively believes there is a high probability that a fact exists (the patent); and (b) takes deliberate actions to avoid learning that fact; is deemed to have knowledge of the fact; FACTS OF GLOBAL-TECH: Pentalpha (the defendant) copied SEB's deep fryer design; had an opinion of counsel that searched US patents but failed to discover SEB's US patent (even though they copied the French product and SEB also had a US patent); the Court held this evidence supported willful blindness; SIGNIFICANCE: willful blindness means a company cannot deliberately avoid investigating patents in a technology space to claim ignorance; COMMIL USA v. CISCO SYSTEMS (S.Ct. 2015): THE QUESTION: whether a good-faith belief in the INVALIDITY of the asserted patent is a defense to induced infringement; THE HOLDING: a good-faith belief that the patent is INVALID is NOT a defense to induced infringement; REASONING: invalidity and infringement are separate defenses; if the patent is in fact invalid it provides an absolute defense to all infringement; a mere subjective belief in invalidity is insufficient — a defendant must prove actual invalidity; CONTRAST WITH NONINFRINGEMENT: a good-faith belief in NON-INFRINGEMENT (that the acts do not actually infringe the patent's claims) CAN be a defense to specific intent for inducement; PRACTICAL IMPACT: to avoid inducement liability, companies typically obtain an opinion of counsel on NON-INFRINGEMENT (not just invalidity); obtaining only an invalidity opinion provides limited protection after Commil.

Divided infringement is when no single entity performs all steps of a method claim: THE PROBLEM: under 35 U.S.C. § 271(a), direct infringement of a method claim requires a SINGLE ENTITY to perform ALL steps of the claimed method; if Step A is performed by Company X and Step B is performed by User Y, neither Company X nor User Y directly infringes; TRADITIONAL RESULT WITHOUT § 271(b): if no single party performs all steps, there is no direct infringement → no inducement (no underlying infringement); this created a patentability gap for multi-party method inventions (e.g., cloud computing methods; multi-party internet transaction methods); AKAMAI TECHNOLOGIES v. LIMELIGHT NETWORKS (Fed. Cir. 2015 en banc): THE HOLDING: § 271(b) can support induced infringement liability in divided infringement scenarios WITHOUT requiring direct infringement by a single entity, PROVIDED: (a) the defendant induced the performance of all steps; and (b) all steps were actually performed; KEY LIMITATION: the en banc court significantly limited this theory and later clarified in the companion case Limelight Networks v. Akamai Technologies (S.Ct. 2014): § 271(b) CANNOT be satisfied absent an act of direct infringement; the Supreme Court sent the case back to the Fed. Cir.; CURRENT STATE: the Fed. Cir. (on remand) affirmed inducement can be found when: the defendant performs some steps AND induces the third party to perform the remaining steps; OR the defendant conditions participation in an activity or the receipt of a benefit on the third party's performance of the remaining method steps; AGENCY OR CONTRACTUAL RELATIONSHIP: a single-entity standard can still be met for direct infringement when one entity controls or directs the performance of the other party's steps; independent contractors performing steps under the direction and control of the defendant = defendant as single-entity direct infringer; PRACTICAL IMPLICATION: method claims in patents covering multi-party internet, cloud, or platform transactions are particularly vulnerable to divided infringement defense; patent drafters should include system claims and product claims in addition to method claims.

Product labeling and instructions for use are the most common source of inducement claims: LABELING LIABILITY THEORY: when a company sells a product with instructions that teach users to perform all steps of a patented method, the company may be liable for inducing those users' direct infringement of the method patent; CLASSIC PHARMACEUTICAL LABELING SCENARIO: a drug company's label instructs doctors/patients to use a drug in a specific therapeutic method; a method-of-treatment patent claims that specific therapeutic method; the drug's use as instructed directly infringes the method patent; the drug company's label = inducement (provides the instruction + intent to encourage the use); AstraZeneca AB v. Apotex Corp. (Fed. Cir. 2012): the presence of an infringing use in a label is sufficient to create a genuine dispute of material fact on inducement even if the label also includes non-infringing uses; Vanda Pharmaceuticals v. West-Ward Pharmaceuticals (Fed. Cir. 2018): confirmed that generic drug labeling that instructs physicians to practice a patented method = sufficient inducement; SOFTWARE DOCUMENTATION AND API DOCUMENTATION: software companies that document how to use a product in a way that infringes a method patent face the same risk; providing code examples; tutorials; or SDK documentation that walks through infringing steps can constitute inducement; ADVERTISING AND MARKETING: marketing materials that specifically promote infringing uses create an inducement risk; particularly risky: comparison marketing that highlights the infringing feature; MINIMIZING LABELING RISK: CARVE-OUT LABELS: revise labels to remove instructions for specifically patented methods (the so-called 'skinny label'); AstraZeneca v. Apotex: a skinny label that carves out the patented method may defeat inducement (but see GlaxoSmithKline v. Teva for the limits of this approach); LEGAL REVIEW OF LABELING: all product labeling; instructions; and documentation for products in patent-intensive fields should receive IP legal review before publication; LABEL MONITORING: monitor competitor patents against your current labeling; new competitor patents may create new labeling risks.

Minimizing inducement risk requires both legal and operational measures: OBTAIN PATENT OPINIONS FOR HIGH-RISK PRODUCTS: get a formal written opinion of counsel on non-infringement (not just invalidity after Commil) before launching products in patent-intensive fields; the opinion must cover the specific conduct being induced (the acts the customers will perform); a product-level opinion may not cover inducement if the infringing acts are performed by customers following instructions; AUDIT PRODUCT DOCUMENTATION: review all product manuals; API docs; tutorials; marketing materials; and labeling for content that teaches a third party to perform potentially infringing acts; have IP counsel review before publication; IMPLEMENT NOTICE PROCEDURES: once a patent is identified as potentially relevant (through a watch alert; demand letter; or lawsuit), immediately evaluate whether current product documentation teaches infringing uses; consider revising documentation to remove infringing instructions; IMPLEMENT KNOWLEDGE MANAGEMENT FOR PATENT ALERTS: document the company's response to all patent alerts; this creates a record showing good-faith investigation (not willful blindness); a formal response procedure that reviews new competitor patents and triggers non-infringement analysis avoids the willful blindness problem under Global-Tech; TRAIN SALES AND MARKETING: sales personnel should not instruct customers in infringing uses of a product; training on what NOT to say in sales calls and demonstrations; remove references to infringing uses from demos and sales collateral; REVIEW THIRD-PARTY RELATIONSHIPS: contracts with distributors; resellers; and integrators should not authorize or encourage infringing uses of the technology; audit distribution agreements for language that could suggest encouragement of infringement; RESPOND PROMPTLY TO DEMAND LETTERS: upon receiving a patent demand letter, the company now has actual knowledge of the patent; future conduct that encourages customers to infringe is now clearly inducement; immediately evaluate whether current labeling/documentation teaches the claimed method.