Noerr-Pennington Doctrine

The Noerr-Pennington doctrine is one of the most important antitrust doctrines in patent law, protecting patent enforcement activities from antitrust liability: ORIGINS: Eastern Railroad Presidents Conference v. Noerr Motor Freight, Inc. (S.Ct. 1961): railroads hired a public relations firm to campaign against legislation favorable to trucking companies; the Supreme Court held that this lobbying activity, even if anticompetitive in purpose, was protected from Sherman Act liability; United Mine Workers v. Pennington (S.Ct. 1965): extended the doctrine to petitioning the executive branch (regulatory agencies); CONSTITUTIONAL BASIS: the First Amendment protects the right to petition the government for redress of grievances; courts view Noerr-Pennington as implementing this constitutional protection in the antitrust context; APPLICATION TO PATENT ENFORCEMENT: filing a patent infringement lawsuit is a form of petitioning the judicial branch; under Noerr-Pennington, this petitioning is immune from antitrust liability even if: the lawsuit has an anticompetitive purpose or effect; the patent ultimately turns out to be invalid; the plaintiff sought to use the lawsuit to remove a competitor from the market; PROTECTED PATENT-RELATED ACTIVITIES: (1) PATENT INFRINGEMENT LAWSUITS: filing and maintaining infringement suits in district court; (2) PTAB PETITIONS: filing IPR, PGR, CBM, or ex parte reexamination petitions; (3) ITC SECTION 337 PROCEEDINGS: exclusion order proceedings; (4) DEMAND LETTERS: pre-suit demand letters and cease-and-desist communications; (5) LICENSING NEGOTIATIONS: licensing discussions backed by the implicit or explicit threat of litigation; (6) REGULATORY SUBMISSIONS: listing patents in the Orange Book under Hatch-Waxman; (7) PATENT PROSECUTION: obtaining a patent (except where obtained by fraud — the Walker Process exception); WHY NOERR-PENNINGTON IS CRITICAL: without Noerr-Pennington protection, virtually every patent infringement lawsuit would expose the plaintiff to antitrust counterclaims, since patent enforcement by its nature restricts competition; the doctrine recognizes that the patent system deliberately grants a limited monopoly, and exercising that monopoly through litigation is the system working as intended; GEOGRAPHIC LIMITATIONS: Noerr-Pennington developed under US antitrust law; foreign legal systems may not have equivalent protections; companies filing patent suits in foreign jurisdictions should evaluate local antitrust rules.

The sham exception is the most important limitation on Noerr-Pennington protection in patent enforcement: THE PROFESSIONAL REAL ESTATE TEST: Professional Real Estate Investors, Inc. v. Columbia Pictures Industries, Inc. (S.Ct. 1993) established that a lawsuit is a sham only if it satisfies BOTH of: (1) OBJECTIVE PRONG: the lawsuit is objectively baseless — no reasonable litigant could realistically expect to succeed on the merits; and (2) SUBJECTIVE PRONG: the party brings the lawsuit in the subjective knowledge that it is baseless, as an attempt to interfere directly with the business relationships of a competitor through the use of the governmental process (rather than the outcome); OBJECTIVE BASELESSNESS: assessed at the time of filing, not in hindsight; a lawsuit that is colorable (has some basis in fact and law) is not objectively baseless even if it ultimately loses; claim construction disputes, prior art questions, and validity issues can all make a lawsuit colorably meritorious even if the patent holder ultimately loses; EXAMPLES OF OBJECTIVE BASELESSNESS: suing based on a claim that does not even arguably cover the accused product; suing on a patent when the holder knows it has been disclaimed; suing when no reasonable claim construction would make the accused product infringe; PROCESS vs. OUTCOME DISTINCTION: the subjective prong requires that the patent holder seek to use the PROCESS OF LITIGATION (discovery burdens, costs, delays) as a competitive weapon — not just seek favorable outcomes; legitimate litigation uses courts to get outcomes (injunctions, damages); sham litigation uses courts to impose costs on competitors regardless of outcomes; APPLYING THE TEST IN PATENT CASES: most patent enforcement loses at claim construction or on invalidity grounds does NOT constitute sham litigation; patent claim construction is genuinely difficult; reasonable people disagree; a plaintiff whose claim construction position loses on summary judgment was not necessarily objectively baseless; PATTERN EVIDENCE: courts examine: the ratio of patent suits filed to patents actually enforced by judgment; the identity of defendants (companies too small to mount a defense vs. full-sized competitors); timing of suits in relation to competitive events; internal communications showing awareness of weakness; whether demand letters preceded suits or suits came with no warning; CALIFORNIA MOTOR TRANSPORT: a series or pattern of objectively baseless proceedings can constitute sham even if each individual proceeding has some marginal merit; high-volume assertion campaigns against many defendants each facing borderline claims may collectively constitute sham litigation.

Patent demand letters are protected petitioning activity under Noerr-Pennington, but this protection has limits: DEMAND LETTERS AS PETITIONING: a demand letter asserting patent rights and threatening litigation is a precursor to petitioning the courts; courts have consistently held that demand letters are protected Noerr-Pennington activity; FTC AND STATE ATTORNEY GENERAL ACTIONS AGAINST DEMAND LETTERS: the Federal Trade Commission and several state attorneys general have challenged abusive patent demand letter campaigns under § 5 FTC Act (unfair methods of competition) and state unfair business practice laws; key issues: LETTERS ASSERTING MATERIALLY FALSE CLAIMS: claiming a patent covers a product it does not; falsely stating products have been found to infringe; LETTERS SENT TO END USERS: sending demand letters to customers (rather than manufacturers) to pressure them to stop using products; DECEPTIVE LETTERS: letters that obscure the identity of the patent holder; letters that make false representations about settlement negotiations; VERMONT AND OTHER STATE LAWS: Vermont was the first state to pass a law targeting bad faith patent demand letters (2013); similar laws followed in Minnesota, Louisiana, Virginia, and other states; these laws allow the recipient of a bad-faith demand letter to sue the sender; BAD FAITH INDICATORS UNDER STATE LAWS: demand letter sent to end users (retailers, small businesses, customers) rather than the manufacturer; letter fails to include the patent number(s); letter fails to identify the specific claim(s) asserted; letter fails to identify the accused product; letter threatens a lawsuit the sender has no intention of filing; letter demands a settlement amount that does not reflect the likely value of the claims; NOERR-PENNINGTON AND STATE LAW CLAIMS: federal courts have been split on whether Noerr-Pennington preempts state bad-faith demand letter laws when those laws overlap with antitrust concerns; BEST PRACTICES FOR DEMAND LETTERS: identify the patent number and asserted claims; describe the accused product specifically; provide a reasonable factual basis for the infringement assertion; conduct and document pre-suit investigation; avoid sending letters directly to customers of the manufacturer; provide a reasonable response period; be prepared to actually file suit if demands are not met.

Noerr-Pennington protection extends beyond district court litigation to all forms of patent petitioning activity: PTAB PROCEEDINGS — IPR/PGR/CBM: inter partes review, post-grant review, and covered business method review petitions at the PTAB are petitioning the executive branch (USPTO is part of the executive branch); these proceedings are protected Noerr-Pennington petitioning activity; a patent holder cannot face antitrust liability merely because it challenges a competitor's patent in IPR; SIMILARLY, a patent CHALLENGER filing an IPR petition is protected — the patent holder cannot claim antitrust injury merely from having its patent challenged at the PTAB; SCOPE OF PROTECTION FOR PTAB FILINGS: the objectively baseless petition test applies in the PTAB context as well; a petition that has no reasonable basis for challenging any claim would not be protected; but a petition that raises colorable prior art arguments is protected even if the petition ultimately fails to invalidate; ITC SECTION 337 PROCEEDINGS: ITC investigations are executive branch proceedings; filing a Section 337 complaint (seeking to exclude infringing imports) is protected petitioning; an accused infringer cannot bring antitrust counterclaims in the ITC based solely on the filing of the Section 337 complaint; FDA AND HATCH-WAXMAN: listing a patent in the FDA's Orange Book and asserting patent rights against a generic ANDA applicant are regulatory/petitioning activities protected by Noerr-Pennington; however, the ITC and courts have held that fraudulent Orange Book listings (listing patents that the holder knows do not actually cover the approved drug) may lose Noerr-Pennington protection under the sham exception; REVERSE PAYMENTS AND NOERR-PENNINGTON: when a branded pharmaceutical company settles a patent case with a large cash payment to the generic (a reverse payment or pay-for-delay settlement), the SETTLEMENT of the patent case itself may still be subject to antitrust scrutiny under FTC v. Actavis (S.Ct. 2013) even if the underlying patent litigation was Noerr-Pennington protected; settling litigation does not immunize anticompetitive terms in the settlement agreement; INTERSECTION WITH STANDARD-SETTING: patent holder's participation in standard-setting organizations and submission of patents for inclusion in standards is generally protected petitioning; however, if the patent holder conceals patents during the standard-setting process and then ambushes implementers — the Rambus scenario — the conduct may lose antitrust immunity.