Mattel v. MGA Entertainment: Who Owns an Employee's Idea?

Mattel, Inc. v. MGA Entertainment, Inc., 616 F.3d 904 (9th Cir. 2010), is the appellate decision that dismantled Mattel’s sweeping courtroom victory in the “Bratz” doll wars and, in the process, clarified how far an employer’s claim can reach into the ideas its employees carry out the door. Carter Bryant conceived the pouty, big-headed Bratz dolls around the time he moved from Mattel to rival MGA Entertainment, and Mattel argued that his employment agreement made every such idea Mattel’s property. A district court agreed so completely that it handed Mattel the entire multibillion-dollar Bratz franchise. Writing for the Ninth Circuit, Chief Judge Alex Kozinski vacated that result, holding that the contract’s reach over “ideas” was ambiguous, that any copyright in Bryant’s preliminary drawings was “thin,” and that the equitable transfer of the whole brand was a gross abuse of discretion.

At a glance

• Case: Mattel, Inc. v. MGA Entertainment, Inc., 616 F.3d 904 (9th Cir. 2010)
• Court: U.S. Court of Appeals for the Ninth Circuit, on appeal from the Central District of California
• Decided: July 22, 2010
• Opinion: Chief Judge Kozinski, joined by Judges Trott and Wardlaw
• Subject matter: Ownership of an employee-conceived product idea; scope of an invention-assignment clause; copyright scope in preliminary designs; the constructive-trust remedy
• Holding: The invention-assignment agreement was ambiguous as to whether it captured ideas, the copyright in Bryant’s sketches and sculpt was thin, and imposing a constructive trust over the entire Bratz brand was an abuse of discretion

The dolls, the designer, and the sweeping judgment below

Carter Bryant was a Mattel doll designer bound by an employment agreement assigning to Mattel his “inventions” — a term the contract defined to include, among other things, discoveries, improvements, and designs. While the parties disputed exactly when he did the work, Bryant conceived the Bratz concept and produced preliminary sketches and a rough sculpt around the period he left Mattel for MGA. MGA developed the concept into the Bratz line, which became a genuine rival to Barbie and generated billions of dollars in sales.

Mattel sued, and at trial it persuaded the district court that Bryant’s agreement assigned his ideas to Mattel and that MGA had built its empire on misappropriated Mattel property. The court then imposed extraordinary relief: it constructed a constructive trust sweeping in essentially the entire Bratz trademark portfolio and related copyrights, effectively transferring the brand from MGA to Mattel, along with a multimillion-dollar damages award. It was, in the Ninth Circuit’s later description, a “wholesale transfer” of a business that MGA had spent years and enormous resources building.

An assignment of “inventions” is not obviously an assignment of ideas

The first pillar of Kozinski’s opinion concerned the contract. The district court had ruled, as a matter of law, that the word “inventions” in Bryant’s agreement necessarily reached ideas like the Bratz concept, so that the moment Bryant conceived it the idea belonged to Mattel. The Ninth Circuit disagreed that the point was so clear. The assignment clause “could be interpreted to cover ideas,” the court acknowledged, but “the text does not compel that reading.” Because the phrase was reasonably susceptible to more than one meaning — did “inventions” include intangible ideas, or only more concrete inventive output? — the contract was ambiguous.

Under California law, that ambiguity was not for the judge to resolve on summary judgment; it was a question for the jury, which had to weigh extrinsic evidence of what the parties intended. By deciding the contract’s scope itself and in Mattel’s favor, the district court had usurped the jury’s role. This holding matters well beyond Bratz: it warns employers that boilerplate invention-assignment clauses do not automatically capture every stray idea an employee has, and that courts will read such clauses narrowly and against the drafter when the language is not explicit about intangible ideas.

Thin copyright and an overbroad remedy

Even assuming Mattel owned Bryant’s original sketches and preliminary sculpt, the Ninth Circuit held, that ownership could not justify seizing the whole Bratz brand. The reason lies in the scope of copyright. Copyright protects a particular expression, not the underlying idea — “otherwise, the first person to express any idea would have a monopoly over it.” A generic concept like “young, stylish girls with big heads and an attitude” is an unprotectable idea; if Mattel could monopolize it, it would own every “fashion doll with a bratty look or attitude, or doll sporting trendy clothing.” Because the preliminary sculpt occupied only a narrow range of expression for a fashion doll, it was entitled to just “thin” copyright protection — protection against virtually identical copying, not against every doll sharing the same general look. The finished Bratz dolls, applying that correct standard, were not necessarily substantially similar to Bryant’s early materials.

That analysis fed directly into the court’s treatment of the remedy. Even if some Bratz-related idea had originated with a misappropriated sketch, the constructive trust transferring the entire trademark portfolio and franchise ignored MGA’s own vast contribution — its product development, marketing, and years of investment that turned a rough concept into a global brand. Imposing so sweeping a trust was “an abuse of discretion.” The court vacated the constructive trust, the copyright injunction, and the damages award, and remanded for further proceedings. Kozinski framed the stakes in characteristically plain terms: even a business built on a wrongfully taken idea is not automatically forfeit in its entirety to the original owner.

Open questions

The 2010 decision reset rather than ended the litigation. It left for the jury the meaning of Bryant’s contract and the timing of his work, and it left open how much, if anything, Mattel could ultimately recover. On remand the war intensified: MGA pressed its own counterclaim accusing Mattel of stealing MGA’s trade secrets through corporate espionage at toy fairs, and a jury eventually awarded MGA substantial damages on that theory — a stunning reversal of fortune. The broader open question the case poses for practitioners is where, exactly, the line falls between an idea an employer may claim and an idea an employee is free to develop elsewhere, and how contract drafting, copyright scope, and trade-secret law interact to police it.

Implications

• Invention-assignment clauses are read narrowly. Language assigning “inventions” will not automatically be construed to capture intangible ideas; if an employer wants ideas covered, the contract must say so unambiguously.
• Ambiguity goes to the jury. When an assignment clause is reasonably open to more than one meaning, its scope is a fact question resolved with extrinsic evidence, not a matter of law decided for the drafter.
• Thin copyright, thin leverage. Preliminary designs in a crowded field earn only protection against near-identical copying, so owning early sketches rarely translates into owning the mature product.
• Remedies must match the wrong. Even genuine misappropriation does not justify seizing an entire business built largely on the defendant’s own investment; a constructive trust must be tailored, not confiscatory.

Frequently asked questions

What did the Ninth Circuit actually decide in the 2010 Bratz appeal? It vacated the district court’s judgment transferring essentially the entire Bratz brand to Mattel. The court held that the employee-invention agreement’s assignment of “inventions” was ambiguous as to whether it captured ideas, that any copyright in the preliminary sketches and sculpt was “thin,” and that imposing a constructive trust over the whole franchise was an abuse of discretion.

Did Mattel own Carter Bryant’s Bratz idea? The court did not decide that it did. It held that whether Bryant’s contract assigned mere ideas — as opposed to tangible inventions — was ambiguous and had to be resolved by a jury weighing extrinsic evidence, not decided as a matter of law in Mattel’s favor.

How does this case relate to trade secrets? The larger Mattel–MGA war was fought over ownership and alleged theft of commercially valuable, secret product concepts and information. On a later retrial MGA prevailed on its own trade-secret counterclaim against Mattel, underscoring how disputes over employee-generated ideas blend contract, copyright, and trade-secret law.

Authorities and sources

• Mattel, Inc. v. MGA Entertainment, Inc., 616 F.3d 904 (9th Cir. 2010) (decided July 22, 2010). Leagle full-text opinion; CourtListener.
• Analysis of the reversal via the Harvard Journal of Law & Technology digest.
• Copyright-scope and constructive-trust discussion corroborated by the University of Michigan Library substantial-similarity guide.