Fifth Circuit: Co-Owners Can’t Sue Under Lanham Act

Disclaimer: This article is for general information and education, not legal advice. If you have a real dispute, talk to a qualified trademark attorney in your jurisdiction.

Trademark law is usually a neat little morality play: one party builds goodwill, another party tries to ride that goodwill like it’s a free Uber, and the Lanham Act steps in to reduce consumer confusion (and everyone’s blood pressure).
But the Fifth Circuit just delivered a plot twist that feels like it belongs on a reunion tour: if you co-own the trademark, you generally can’t turn around and sue your fellow co-owner for infringement or dilution under the Lanham Act.

In plain English: co-owners are “owners,” and the Lanham Act is mainly built to protect owners from non-owners who imitate or misuse the mark.
When the fight is inside the house, the Fifth Circuit says: stop trying to use federal trademark law like a family-argument megaphone. Handle it through contracts, business break-up tools, or state-law remedies.

Quick Take: What the Fifth Circuit Actually Said

The headline version is simple: co-owners can’t sue each other for trademark infringement or dilution under the Lanham Act.
Even if one co-owner thinks the other is using the mark “wrong,” “without permission,” or “in a way that makes fans mad on the internet.”
Without a contract that changes the rules, the default co-ownership reality is: each co-owner typically has an equal right to use the mark.

Meet the Case: When a Band Name Becomes a Legal Battle

The backstory (because every trademark case is secretly a story about relationships)

The dispute that led to this ruling involved the name of the 1990s R&B group Jade and a later attempt to revive the group’s performances and brand.
Like many legacy acts (and many startups), the question wasn’t “Is the name valuable?”it was “Who controls the name when the original team doesn’t agree anymore?”

The parties were not strangers. They were connected through the history, the goodwill, andcriticallyshared ownership interests in the trademark.
When some members continued performing under the mark with another singer and one member objected, the disagreement turned into litigation.
The claims included typical Lanham Act flavors: infringement, false designation of origin, and dilution.

The big legal question

The central question wasn’t whether the name “Jade” could function as a trademark (it could), or whether consumers might be confused in the abstract.
It was: Does the Lanham Act give a co-owner a cause of action against another co-owner (or that co-owner’s authorized performer) for using the co-owned mark?

The Fifth Circuit’s answer: No. And it wasn’t a “no, but maybe with better wording” situation. It was a “the statute doesn’t authorize that kind of suit” situation.

Why Co-Owners Can’t Sue Under the Lanham Act

1) Trademark infringement is aimed at “imposters,” not “owners”

At its core, trademark infringement law targets use of a mark by someone who has no right to use itsomeone pretending to be, sponsored by, or connected to the brand owner.
If you’re an owner, you’re not the typical “imposter” the statute was designed to stop.

Co-ownership means each co-owner generally holds an ownership interest that comes with a right of use. That changes the posture completely.
A co-owner may be annoying. A co-owner may be sloppy. A co-owner may be making business decisions that feel like they were brainstormed at 2 a.m.
But annoying is not the same thing as unauthorized under the Lanham Act framework when the user is an owner.

2) “Unauthorized use” gets complicated when everyone has keys

In a typical infringement case, you can draw a bright line: the plaintiff owns the mark; the defendant does not.
But co-ownership is more like giving two people joint access to the same house.
If you both own the house, one owner can’t accuse the other of “trespassing” for walking through the front door.

That’s why co-ownership arrangements are often described (politely) as “challenging.”
The law assumes that if you chose to co-own, you accepted certain risksespecially the risk that you might not have a clean federal trademark claim if the relationship cracks.

3) “But what about consumer confusion?”

This is where people’s intuition fights the doctrine.
Trademark law cares about consumer confusion, yesbut it is also statutory.
If the cause of action doesn’t cover this relationship (co-owner vs. co-owner), courts aren’t going to manufacture a federal remedy just because confusion seems possible.

The Fifth Circuit’s approach reflects a boundary: the Lanham Act isn’t a universal “stop being messy with the brand” button.
Some brand disputes are more about ownership governance than marketplace deception.
And governance disputes usually belong in contracts, business torts, fiduciary duty claims, dissolution actions, or negotiated buyouts.

4) Dilution doesn’t save the day

Dilution claims (blurring/tarnishment) often feel like a powerful backup planespecially for brands that think their name is “famous enough” to justify it.
But the Fifth Circuit rejected dilution claims between co-owners as well, treating them as part of the same basic problem: you can’t use the Lanham Act to sue a co-owner as if they’re an outside infringer.

5) What about a third party performer or partner?

Here’s another key takeaway: if one co-owner authorizes a third party (think: a licensee, performer, distributor, collaborator), the Fifth Circuit reasoned that the other co-owner generally can’t turn that authorized person into an “infringer” eitherat least not under the theory that the use is unauthorized.

Translation: if the co-ownership structure lets one owner grant permission, then “permission exists,” even if the other owner is furious about it.
Federal trademark law won’t automatically convert that internal disagreement into external liability.

So What Can Co-Owners Do Instead?

If the Lanham Act isn’t your rescue helicopter, what is? Usually, it’s the stuff that feels boring… until it becomes the only thing that matters.

Contract law (the underrated superhero)

Co-ownership without a detailed agreement is like starting a band without deciding who owns the name, who books shows, and who controls the Instagram password.
You can do it. You just can’t do it safely.

A strong co-ownership agreement can set:

• Who can use the mark (and under what conditions).
• Quality control rules (what counts as “on brand”).
• Licensing authority (unilateral vs. unanimous consent).
• Geographic or channel limits (touring, merch, online sales, endorsements).
• Enforcement obligations (who pays to police infringers, who decides when to sue).
• Exit ramps (buy-sell clauses, valuation methods, and what happens on a breakup).

Business divorce tools

When co-owners split, the practical question is often: who ends up controlling the goodwill?
Depending on the facts, disputes can be resolved through:

• Negotiated buyouts (one side buys the other’s interest).
• Licensing arrangements (one side pays to use the name under defined rules).
• Entity governance solutions (if a company owns the mark, corporate documents may control decision-making).
• State-law claims (unfair competition, breach of fiduciary duty, conversion of assets, and morefact dependent).

Practical Lessons for Businesses, Creators, and “We’ll Figure It Out Later” Partnerships

If you’re co-owning a mark, assume you are co-owning a problem

That’s not meant to be cynicaljust realistic.
Co-ownership can work, but it requires strong rules.
Without rules, the law often defaults to “equal rights,” which sounds fair until it means “equal ability to do things you hate.”

If you want control, structure ownership to match control

Many brands solve this by placing trademark ownership in a single entitylike an LLCthen controlling that entity through operating agreements.
Instead of three people each owning one-third of a trademark, you have one owner (the company) and a governance system for decisions.
This can be cleaner for enforcement, licensing, and investor diligence.

Don’t wait until the relationship is on fire to draft the fire extinguisher

When things are going well, everyone is agreeable.
When things go sideways, everyone remembers that one text message from three years ago and interprets it as a binding constitution.
If you build the rules while everyone still likes each other, you’ll save money, time, and emotional energy later.

Mini Checklist: Co-Ownership Agreement Must-Haves

• Ownership percentages and what they mean (profit share vs. control rights).
• Decision rules (majority vote, unanimous consent, manager control).
• Quality control standards (especially critical for licensing).
• Who can license and whether sublicenses are allowed.
• Who pays for trademark filings, renewals, and enforcement.
• What happens if one owner stops participating (abandonment, vesting, buyout triggers).
• Dispute resolution (mediation/arbitration, venue, attorneys’ fees).

FAQ: Common Questions After This Fifth Circuit Decision

Does this mean co-owners can do anything they want with the mark?

Not “anything,” but it does mean federal trademark claims may not be the right tool for co-owner vs. co-owner fights.
Other legal theories may still apply, especially if there’s a contract, an entity structure, or provable misconduct beyond “I used the mark.”

Is this rule the same everywhere in the U.S.?

The decision is binding in the Fifth Circuit (which includes Texas, Louisiana, and Mississippi) and can be persuasive elsewhere.
Trademark co-ownership disputes are fact-heavy, and different courts may analyze edge cases differently.
But the big pictureco-ownership makes Lanham Act lawsuits harderhas shown up in multiple courts over time.

What if the co-owner is causing real consumer confusion?

Confusion matters, but the right claim still has to exist.
In co-ownership settings, courts often view confusion as a governance problem: if owners want to restrict use, they should do it by agreement.
That’s why the contract drafting isn’t “paperwork”it’s brand survival.

Conclusion: The Fifth Circuit’s Message Is Basically “Get It in Writing”

The Fifth Circuit’s co-ownership ruling is a wake-up call for anyone building a brand with partnersbands, creators, founders, joint ventures, family businesses, or friends who swear they’ll stay friends forever.
If you co-own the trademark, you may not be able to use the Lanham Act to police your co-owner.
Your best protection is structure: a clear agreement, a clean ownership vehicle, and decision-making rules that don’t rely on vibes.

of Real-World Experience: How These Disputes Actually Play Out

In practice, trademark co-ownership disputes rarely start as “We are now in a federal statutory standing debate.” They start as something more human:
someone feels excluded, someone feels exploited, and someone feels like they’re doing all the work while everyone else is cashing checks.
Over and over, the same patterns show upacross industries, not just music.

One common scenario is the “we built it together” startup split. Two founders pick a name, launch a product, and file a trademark application listing both as owners.
Later, one founder pivots the businessnew product, new messaging, new customer baseand the other founder says, “You can’t do that with our brand.”
The pivoting founder replies, “I’m literally an owner.” Suddenly, the argument isn’t about consumers; it’s about governance.
If there’s no operating agreement spelling out who controls the mark, the dispute becomes expensive and emotionally exhausting fast.

Another frequent pattern is the creator-collaboration breakup: a podcast duo, YouTube partners, or a design collective.
They co-own the brand name, then one partner keeps publishing content under the name because the audience is there and the revenue is there.
The other partner wants the content to stopor wants quality controlsor wants their voice removed from the identity.
But co-ownership can make “stop using it” a hard demand to enforce without an agreement.
The most painful part is that both sides often feel morally right, because both sides remember a different version of the “deal.”

Then there’s the family business / friends-and-family situation: siblings, spouses, cousins, or longtime friends.
These arrangements often rely on trust, not paperwork, and the trademark ends up co-owned because it “felt fair.”
When relationships changedivorce, inheritance issues, or simple burnoutthe brand becomes a bargaining chip.
At that stage, litigation threats are usually less about “protecting consumers” and more about leverage in a breakup negotiation.

From a practical standpoint, the best outcomes usually come from one of two strategies:
(1) buyouts (clean separation, one owner takes the mark), or (2) structured coexistence (a license agreement that sets tight rules, revenue splits, and quality standards).
The worst outcomes happen when nobody has an exit plan and everyone tries to win by forcebecause trademarks aren’t just legal assets, they’re identity assets.
People don’t just fight over revenue; they fight over legacy.

The Fifth Circuit decision essentially tells co-owners: if you want a federal trademark hammer for internal fights, you needed to build that tool yourselfthrough contracts and governancebefore the conflict began.
It’s not glamorous, but it’s how you keep a brand from becoming a never-ending reunion tour of lawsuits.