Two or more parties can jointly own a trademark under U.S. law, and the USPTO accepts applications filed by joint applicants. But joint ownership is risky, because a trademark is supposed to identify a single source of goods or services; if co-owners use the mark independently, without unified control over quality, the mark can lose its distinctiveness and become hard to enforce. In most cases it is safer for one party or a jointly owned entity to own the mark and license it to the others under a written agreement.
Joint ownership often arises informally: co-founders file a trademark application in their own names, two companies launch a co-branded product, or a mark passes to several heirs. Each situation raises the same core question of who controls the brand.
How Joint Ownership Arises
- Joint applications. Two or more individuals or entities file a single application as joint applicants. The USPTO treats them as one applicant that owns the mark together, and generally expects them to operate as a single source rather than as competitors using the same mark.
- Collaborations and joint ventures. Parties to a co-branding deal or joint venture sometimes adopt a new mark together, or combine elements of their existing marks into a new composite mark.
- Assignments and inheritance. A mark may be assigned to more than one party, or pass to multiple heirs or beneficiaries when an owner dies.
- Founder filings. Founders sometimes file in their personal names before forming a company, which can leave the business without clear title to its own brand.
The Single Source Problem
Trademark law protects marks because they tell consumers that goods or services come from one source and meet a consistent standard. That source does not have to be named, but there must be one. When co-owners each use the mark for their own separate businesses, consumers may see two unrelated sources behind the same name. That can weaken the mark, support a challenge to registration, or make it difficult to stop third parties from using similar marks.
For joint ownership to hold up, the co-owners need to act as a unit in controlling the nature and quality of the goods or services. In practice that means a shared quality standard, a process for approving new uses, and a way to resolve disagreements.
Rights and Obligations of Co-Owners
Unless an agreement says otherwise, co-owners are generally treated as holding undivided interests in the mark. Several questions are not clearly settled under the case law and are better resolved by contract:
- Licensing. Whether one co-owner can license the mark to a third party without the others’ consent. Any license, by any owner, should include quality control; a license without it (a “naked license”) can undermine the mark.
- Assignment. Whether one co-owner can sell its interest, and to whom. A transfer to a competitor could put the single source requirement at risk.
- Use and maintenance. Use by one co-owner may support the registration for all, but the owners should agree on who handles renewals, Section 8 declarations of use, and evidence of use.
- Enforcement. A co-owner can typically bring an infringement claim, but courts often expect, and sometimes require, all co-owners to be joined. The agreement should address who decides whether to sue, who pays, and how recoveries are shared.
- Exit. What happens if the collaboration ends or the co-owners fall out. Without a buyout or allocation mechanism, a deadlock can freeze the brand.
Better Alternatives
Because of these risks, many businesses avoid joint ownership altogether:
- Single owner with licenses. One party owns the mark and licenses it to the others with quality control provisions. Use by a controlled licensee counts as use by the owner.
- Jointly owned entity. In a joint venture, the parties can form a separate company, owned as agreed, that holds the mark and licenses it back to them. This keeps one legal owner while sharing economics.
- Company ownership for startups. Founders should register the brand in the company’s name, or assign any personal filings to the company, so the business owns its brand and investors see clean title. See Trademarks 101 for the basics of clearance and registration.
What a Joint Ownership Agreement Should Cover
If joint ownership is the right structure, put a written agreement in place before the mark is filed or used. Key terms include:
- Each owner’s percentage interest and permitted uses, including products, territories and channels.
- Quality standards and approval procedures for new uses, packaging and advertising.
- Restrictions on licensing, assignment and encumbrance without consent.
- Responsibility for prosecution, maintenance filings and fees.
- Enforcement decisions, cost sharing and allocation of damages.
- Dispute resolution and deadlock mechanisms.
- Exit rights, buy-sell provisions and what happens on dissolution, bankruptcy or death.
Careful contract negotiation at the outset is far less costly than litigating ownership later, especially if the relationship turns into a founder dispute.
A Simple Example
Suppose two bakeries jointly launch a seasonal product line under a new name and file a joint application. A few years later, one bakery wants to sell frozen versions nationally while the other wants to keep the product local and handmade. Without an agreement, they may disagree about whether either can expand the brand alone, and consumers may see inconsistent products under the same name. A jointly owned entity, or an agreement with clear quality standards and exit terms, would have answered those questions in advance.
The Takeaway
Joint trademark ownership is legally possible but often impractical. If you share a brand, decide up front whether one party, a separate entity or the co-owners together will own it, and document quality control, licensing, enforcement and exit rights in writing.
Frequently Asked Questions
Can two people own a trademark together?
Yes. U.S. law allows joint ownership, and the USPTO accepts joint applications. The co-owners must still function as a single source by jointly controlling the nature and quality of the goods or services.
Can one co-owner license a jointly owned trademark?
The law is not settled on whether one co-owner can license or assign without the others’ consent. A written joint ownership agreement should address licensing and assignment directly.
Should co-founders file a trademark in their own names?
Usually not. The brand should normally be owned by the company. If founders already filed personally, they can generally assign the filing to the company, although an intent-to-use application can be assigned before use is shown only in limited cases, such as to a successor to the business.
What is the alternative to joint trademark ownership?
Common alternatives are having one party own the mark and license it to others with quality control, or forming a jointly owned entity that holds the mark and licenses it to the participants.
How Sutter Law Can Help
Sutter Law’s intellectual property practice advises businesses on trademark ownership, licensing, co-branding and joint venture agreements, and assignments. Contact us for a free consultation.
This article is general information, not legal advice. Reading it does not create an attorney-client relationship.
