Employee Invention Assignment in New Mexico

Can a New Mexico employer require assignment of every invention?

Because there is no statute on point, the limits come from general principles rather than a legislative carve-out. A full-text search of the New Mexico Statutes Annotated Chapter 50 (Employment Law) surfaces no invention-, patent-, or intellectual-property-assignment provision, and there is no Article 9A of the kind sometimes assumed — so a New Mexico employer starts from contract law, not a § 2870-style statutory ceiling on what an assignment promise may capture.

The controlling New Mexico-specific authority is Regents of the University of New Mexico v. Knight, in which the Federal Circuit, applying New Mexico law, held that ownership and transfer of patent rights are questions of state contract law A.1.

“State law governs contractual obligations and transfers of property rights, including those relating to patents.”

The substantive default that state contract law operates against is the federal patent premise restated in Stanford v. Roche: absent an effective assignment, rights in an invention belong to the person who conceived it A.2.

“Since 1790, the patent law has operated on the premise that rights in an invention belong to the inventor.”

The practical consequence is that a New Mexico employer can, in principle, contract for assignment more broadly than a California or New York employer, because no statute carves out own-time inventions from the reach of the clause. But that breadth is not unlimited: an assignment clause is still an ordinary contract term, subject to general contract-law defenses and, where it functions as a restraint on the employee, to New Mexico's reasonableness limits on restraints. There is simply no statutory own-time/own-resource safe harbor for the employee to invoke and no statutory ceiling for the drafter to code around.

Must a New Mexico employer notify the employee?

There is nothing to give notice of. A notice requirement exists in California and Washington precisely to alert the employee to a statutory own-time carve-out that limits the assignment; New Mexico has enacted no such carve-out, so there is no statutory line for a notice to mark. This is why the entry is marked not applicable rather than a bare no: the question presupposes a statutory carve-out that New Mexico does not have.

Where New Mexico does impose disclosure and assignment duties, they come from the contract, not a statute. Regents of the University of New Mexico v. Knight enforced a university policy requiring disclosure and assignment of inventions precisely because, under state contract law, the agreement created that obligation B.1.

“State law governs contractual obligations and transfers of property rights, including those relating to patents.”

For a multistate employer the takeaway is the inverse of the notice states: a New Mexico employer neither has to give a § 2872-style notice nor can rely on one to cure an overbroad clause. The enforceability of the assignment turns entirely on the contract language and the general limits on restraints, not on any statutory notice or disclosure formality.

Who owns an invention by default in New Mexico?

Stanford v. Roche anchors the default. The Supreme Court held that even the Bayh-Dole Act did not displace the long-standing rule that an invention belongs to its inventor, treating that premise as the baseline against which any assignment is measured C.1.

“Since 1790, the patent law has operated on the premise that rights in an invention belong to the inventor.”

Because ownership starts with the inventor, an employer's title is derivative — it exists only if and to the extent the employee assigned it. Any third-party interest must trace back to that inventor-grantor C.3.

“Thus, although others may acquire an interest in an invention, any such interest — as a general rule — must trace back to the inventor.”

The principal exception is the employee hired to invent. Under United States v. Dubilier Condenser Corp., an employee engaged to make a particular invention who succeeds during the term of service must assign the resulting patent to the employer C.2.

“One employed to make an invention, who succeeds, during his term of service, in accomplishing that task, is bound to assign to his employer any patent obtained.”

Short of that, where the employee is neither hired to invent nor bound by a written assignment but has used the employer's time, tools, and materials to reach a concrete result, the employer's remedy under Dubilier is only an equitable shop right — a non-exclusive license to use the invention, not ownership of it. Because ownership therefore starts with the inventor and New Mexico has no statute filling the gap, the dependable path for an employer is a written present-assignment (hereby assigns) clause that transfers legal title automatically on conception, rather than a future promise to assign that leaves the employer with a mere equitable claim.

Are trailing-assignment (holdover) clauses enforceable in New Mexico?

Two gaps define the New Mexico picture. First, there is no statute: nothing caps the duration of a post-employment trailing assignment or otherwise limits what such a clause may reach. Second, our review found no New Mexico decision applying the reasonableness limits specifically to an invention-holdover clause, so the invention-specific application of the rule is genuinely open rather than settled.

What New Mexico does supply is a general reasonableness standard for restraints growing out of the employment relationship. Lovelace Clinic v. Murphy states that the rights and duties created by a contract of employment or association are enforceable only if the restrictions they impose on the employee are reasonable D.1.

“the rights and duties created by the contract of employment or association are enforceable, if the restrictions thus imposed on the employee or the associate are reasonable.”

Extending that principle to holdover assignments is a prediction, not a holding. A New Mexico court asked to enforce a clause that sweeps in inventions an ex-employee conceives after leaving would most likely ask whether the restriction is reasonable — no broader than needed to protect the employer's legitimate interests and not an undue restraint on the former employee's ability to work. Out-of-state authority that has voided open-ended post-employment invention assignments applies other states' law and is at most analogous; it is not New Mexico law and should not be treated as controlling here. The safe reading is that an overbroad trailer clause is at meaningful risk in New Mexico, but the precise standard for invention holdovers has not been decided.