Authorization Defeats Lanham Act § 1125(a) Unregistered Trademark Infringement (and Contract Ratification Bars IP “Theft” Torts)

Case: Patrice Nelson v. MillerKnoll, Inc.
Court: United States Court of Appeals for the Sixth Circuit
Date: July 7, 2026
Author: CLAY, Circuit Judge

1. Introduction

This appeal arose from a dispute over the intellectual property associated with the iconic “Bubble Lamp,” designed by mid-century modern designer George Nelson while affiliated with Herman Miller, Inc. (now MillerKnoll, Inc., “HMI”). Plaintiffs—Patrice Nelson (as personal representative of Jacqueline Nelson’s estate) and Georges Mico Nelson (individually and as personal representative)—claimed that HMI wrongfully obtained and used “Bubble Lamp” trademarks and trade dress and committed related state-law torts.

The central legal questions were: (i) whether the 2006 Royalty Agreement (between Jacqueline Nelson and HMI) as amended by a 2015 Addendum authorized HMI’s ownership and use of the Bubble Lamp-related marks and designs; (ii) whether Plaintiffs ratified HMI’s claimed rights by accepting royalty payments after learning of HMI’s ownership claim; and (iii) whether the Bubble Lamp registrations should be cancelled for alleged fraud on the USPTO.

2. Summary of the Opinion

The Sixth Circuit affirmed summary judgment for HMI on all claims. The court held that the relevant contracts unambiguously authorized HMI to own and use the Bubble Lamp IP. Because Plaintiffs authorized (and later ratified) the challenged conduct, they could not sustain Lanham Act § 1125(a) unregistered infringement claims, Michigan common-law trademark claims, or state tort claims premised on “theft” of the Bubble Lamp IP. The court also affirmed dismissal of the cancellation count because Plaintiffs failed to produce clear and convincing evidence of fraud on the USPTO.

3. Analysis

3.1 Precedents Cited

A. Summary judgment framework

  • Miller v. Admin. Off. of the Courts — Provided the de novo standard of review for summary judgment.
  • Matsushita Elec. Indus. Co. v. Zenith Radio Corp., Anderson v. Liberty Lobby, Inc., and Hawkins v. Anheuser-Busch, Inc. — Supplied the governing principles that (i) only genuine disputes of material fact defeat summary judgment, (ii) a scintilla of evidence is insufficient, and (iii) inferences are drawn for the nonmovant.

B. Contract interpretation (Michigan law) used to decide “authorization”

  • Cincom Sys., Inc. v. Novelis Corp. — Confirmed the court would apply Michigan contract law per the agreement’s choice-of-law clause.
  • Wozniak v John Hancock Mutual Life Ins. Co — Anchored the plain-meaning rule for unambiguous terms.
  • Henderson v. State Farm Fire & Cas. Co. — Supported the court’s approach to defined contract terms (“Licensed Product” must be read as defined, not by ordinary usage).
  • Burkhardt v. Bailey and Zurcher v. Herveat — Foreclosed Plaintiffs’ reliance on unilateral subjective intent to contradict unambiguous contract text.

C. Trademark infringement principles and the opinion’s key doctrinal move

  • Two Pesos, Inc. v. Taco Cabana, Inc. and ETW Corp. v. Jireh Pub., Inc. — Reinforced that Lanham Act § 43(a) (15 U.S.C. § 1125(a)) protects qualifying unregistered marks and trade dress.
  • Libertarian Nat'l Comm., Inc. v. Saliba — Recognized consent as a statutory component in registered-mark infringement under 15 U.S.C. § 1114(1) (“without the consent of the registrant”).
  • Segal v. Geisha NYC LLC and Crystal Ent. & Filmworks, Inc. v. Jurado — Persuaded the Sixth Circuit that “authorization” similarly defeats unregistered-mark infringement under § 1125(a) because consent negates likely confusion/unauthorized use.
  • B & B Hardware, Inc. v. Hargis Industries, Inc. and Appliance Liquidation Outlet, L.L.C. v. Axis Supply Corp. — Supported treating registered and unregistered infringement doctrines as closely parallel, making a consent rule for § 1125(a) doctrinally coherent.
  • Janet Travis, Inc. v. Preka Holdings, L.L.C. — Provided the elements of Michigan common-law trademark infringement and its likelihood-of-confusion focus, which the court reasoned is equally undermined by authorization.
  • United Drug Co. v. Theodore Rectanus Co. — Used to emphasize that trademarks are “appurtenant” to an underlying business, supporting the court’s view that ownership of the Bubble Lamp commercial rights sensibly includes the relevant mark(s).
  • United States v. Sineneng-Smith — Invoked to underscore party presentation: the court would not craft unbriefed theories to rescue Plaintiffs’ state claim if authorization were disputed under Michigan law.

D. Consent/risk allocation defeating tort theories

  • Smith v. Calvary Christian Church — Established in Michigan that consent to an allegedly tortious act defeats tort claims as a matter of law.
  • McMillian v. Nowicki and Hannewald v. Schwertfeger — Reinforced the general Michigan rule that consenting parties cannot sue in tort for the consequences of the conduct they agreed to.

E. Ratification/waiver after learning alleged fraud

  • Bank of the Ozarks v. Perfect Health Skin & Body Ctr., PLLC — Applied the principle that accepting contractual benefits after knowledge of alleged fraud affirms the contract and bars avoidance.
  • Van Scherpe v. Ulberg and Parkyn v. Ford — Cited for Michigan’s doctrine that executing/affirming a contract after discovering fraud waives the fraud claim.
  • Hill v. Gen. Motors Acceptance Corp. — Referenced for the notion that ratification requires “understanding of all the material facts,” which the court found satisfied because Mico admitted learning in 2017 that HMI claimed ownership yet continued accepting royalties.

F. Cancellation for fraud on the USPTO and evidentiary rigor

  • CFE Racing Prods., Inc. v. BMF Wheels, Inc. and Coach House Rest. v. Coach & Six Rests. — Set out the standing and “valid grounds” requirements for cancellation under 15 U.S.C. § 1119.
  • OTR Wheel Eng'g, Inc. v. W. Worldwide Servs., Inc. — Supplied a five-element fraud-on-the-USPTO framework and the clear-and-convincing burden.
  • Hill v. Med. Device Bus. Servs., Inc., Miles v. Bradley County, and Moore v. Philip Morris Companies, Inc. — Used to reject speculative, conclusory expert assertions about another person’s state of mind as insufficient to create a triable fraud issue, especially under a heightened proof standard.

G. Background IP litigation context

  • George Nelson Found. v. Modernica, Inc. — Provided the factual/legal backdrop about Modernica’s Bubble Lamp activities and the resulting dispute over marks and trade dress.

3.2 Legal Reasoning

A. Contract text controlled: the Agreements authorized ownership and use

Applying Michigan plain-meaning rules, the court read the 2006 Royalty Agreement as repeatedly characterizing covered products as “owned” by HMI and granting HMI “exclusive right, title, and interest” in the designs, prototypes, and related materials. Although the agreement used the label “Licensed Products,” it defined that term to refer to products for which HMI “owns the right,” so the definitional section displaced any ordinary “license-only” connotation.

The 2015 Addendum then added “Nelson branded Lamp Products” to the contract’s covered universe and granted HMI the “sole and exclusive right to manufacture…use, and sell” those lamp products worldwide, with effectiveness tied to HMI’s acquisition of the “intellectual property rights necessary” to make and sell Bubble Lamps—tracking the Modernica transaction. The court treated these provisions as extending the same ownership/ exclusivity framework to the Bubble Lamp line.

B. Configuration marks and the “BUBBLE LAMP” word mark were “owned” under the same logic

The court reasoned that granting HMI the exclusive rights in the “designs” necessarily encompassed the configuration marks (trade dress registrations protecting product configuration). For the “BUBBLE LAMP” word mark, the court relied on the agreement’s transfer of ownership over “materials pertaining to any product covered” and the provision giving HMI sole enforcement authority over proprietary rights “relating to” the products. It also invoked the principle (from United Drug Co. v. Theodore Rectanus Co.) that trademark rights are tied to the business/product goodwill, making separation of the mark from the product rights commercially and doctrinally unnatural on these facts.

C. A new Sixth Circuit holding: authorization defeats § 1125(a) unregistered infringement

The opinion’s principal doctrinal development is its express adoption of an authorization/consent defense for Lanham Act § 1125(a) claims. While § 1125(a) does not say “without consent” the way § 1114(1) does, the court held that consent defeats § 1125(a) claims because (i) the statute’s core liability turns on likely confusion, and (ii) where the trademark holder authorizes use, the premise of confusion/unauthorized use collapses—following Segal v. Geisha NYC LLC and Crystal Ent. & Filmworks, Inc. v. Jurado.

The court reinforced that registered and unregistered infringement causes of action function as corollaries (as described in B & B Hardware, Inc. v. Hargis Industries, Inc.), making it sensible to align § 1125(a) with § 1114(1)’s consent logic.

D. Consent also defeated Michigan tort theories

Plaintiffs’ fraud, conspiracy, and unjust enrichment claims were all predicated on the notion that HMI’s possession and use of Bubble Lamp IP was “theft” or otherwise unauthorized. Once the court found authorization in the contracts, those tort claims failed under Michigan consent principles articulated in Smith v. Calvary Christian Church and related cases.

E. Ratification provided an independent bar

Even if Plaintiffs had a viable fraud theory, the court held that Mico’s continued acceptance of millions in royalty payments after he learned in 2017 that HMI claimed ownership constituted ratification/affirmance. Under Van Scherpe v. Ulberg and Parkyn v. Ford, affirming a contract after learning of alleged fraud waives subsequent damages claims for that fraud.

F. Cancellation failed for lack of clear-and-convincing fraud evidence

On cancellation, the court required evidence meeting the clear-and-convincing standard and the multi-element fraud test (as framed by OTR Wheel Eng'g, Inc. v. W. Worldwide Servs., Inc.). Plaintiffs principally relied on alleged misrepresentations by Modernica’s president and an expert’s view that statements were “false,” but the court found the expert’s opinion speculative and insufficient—especially where it effectively asserted knowledge/intent (state of mind) without a reliable basis—citing Hill v. Med. Device Bus. Servs., Inc., Miles v. Bradley County, and Moore v. Philip Morris Companies, Inc..

3.3 Impact

  • Express Sixth Circuit rule on § 1125(a) consent: The opinion squarely holds that authorization defeats a Lanham Act § 1125(a) unregistered trademark infringement claim. This provides defendants a clearer pathway to early resolution (including summary judgment) where a contract, settlement, or course of dealing shows permitted use.
  • Contract drafting and royalty agreements: The case underscores that labels like “Licensed Products” may not matter if the definitions and operative provisions convey ownership (“exclusive right, title, and interest”). Parties using royalty structures should expect courts to enforce the text—even if the business parties colloquially describe the arrangement as a “license.”
  • Ratification through payment streams: Ongoing acceptance of royalties after learning adverse facts can independently defeat both IP and tort claims. This is especially salient in legacy-brand and estate disputes where revenue flows continue while ownership is contested.
  • High evidentiary bar for USPTO-fraud cancellation: The opinion reinforces that alleging procurement fraud requires more than an expert’s inference of falsity/intent; plaintiffs need concrete proof of material falsity, knowledge, intent, USPTO reliance, and resulting damage, satisfying a clear-and-convincing standard.

4. Complex Concepts Simplified

  • Word mark vs. configuration mark: A word mark protects a name or phrase (here, “BUBBLE LAMP”). A configuration mark (a type of trade dress) protects the nonfunctional visual shape/appearance of a product (here, the lamp’s distinctive form).
  • Registered vs. unregistered trademark claims: Registered marks are enforced under 15 U.S.C. § 1114(1). Unregistered marks/trade dress are commonly enforced under 15 U.S.C. § 1125(a) (§ 43(a)). This opinion aligns a key defense—authorization—across both tracks.
  • “Authorization” (consent) as a defense: If the trademark holder authorizes the defendant’s use, the defendant’s use is not “infringement” in the usual sense because the law is aimed at preventing confusing, unauthorized use.
  • Ratification: If a party learns of alleged wrongdoing in a contract but continues accepting benefits (like royalty payments), the law may treat that as affirming the deal—waiving the ability to sue as if the deal were invalid.
  • Cancellation for fraud on the USPTO: This is not just “they shouldn’t have gotten the registration.” It requires proof that the applicant knowingly made a material false statement with intent to mislead, that the USPTO relied on it, and that harm resulted—proved by clear and convincing evidence.

5. Conclusion

The Sixth Circuit’s decision turns a contract dispute into a decisive merits resolution across IP and tort claims: where agreements unambiguously authorize a defendant’s ownership and use of disputed brand assets, plaintiffs cannot repackage that authorized conduct as Lanham Act infringement, common-law infringement, or “theft”-based torts. The court further strengthens finality by applying Michigan ratification principles to ongoing royalty acceptance. Finally, it signals that USPTO-fraud cancellation theories will fail without rigorous, non-speculative proof meeting a clear-and-convincing standard. The most notable precedential contribution is the court’s explicit holding that authorization defeats a Lanham Act § 1125(a) unregistered trademark infringement claim.