# Employee Invention Assignment in North Carolina[^about] North Carolina's invention-assignment statute (N.C. Gen. Stat. §§ 66-57.1 and 66-57.2) voids any clause forcing an employee to assign an invention developed entirely on their own time, without the employer's resources, that neither relates to the employer's business or R&D nor results from the employee's work; unlike California it requires no employee notice; and § 66-57.2 bars an employer from rescinding vested invention rights in a compensation dispute absent fraud. Absent a written assignment the inventor owns by default, and post-employment holdover clauses are judged by ordinary restrictive-covenant reasonableness. ## Can a North Carolina employer require assignment of every invention? {#statutory-carve-out} **Short answer.** No. N.C. Gen. Stat. § 66-57.1 carves out a category of inventions an assignment clause simply cannot reach: anything the employee developed entirely on their own time, without the employer's equipment, supplies, facility, or trade-secret information, that neither relates to the employer's business or actual or demonstrably anticipated research or development nor results from the employee's work. To the extent a provision purports to apply to that type of invention, it is against the public policy of the State and unenforceable — though the employee bears the burden of proving that an invention qualifies [^nc-57-1][^nc-57-1-void]. Section 66-57.1 frames the carve-out as a ceiling on what an assignment promise can capture. However broadly the contract is written, it does not reach an invention the employee made on their own time and with their own resources unless one of two statutory exceptions applies [^nc-57-1]. "Any provision in an employment agreement which provides that the employee shall assign or offer to assign any of his rights in an invention to his employer shall not apply to an invention that the employee developed entirely on his own time without using the employer's equipment, supplies, facility or trade secret information except for those inventions that (i) relate to the employer's business or actual or demonstrably anticipated research or development, or (ii) result from any work performed by the employee for the employer."[^nc-57-1] The two exceptions return an own-time invention to the employer's reach if it either relates to the employer's business or anticipated research or development, or results from the employee's work. Outside those exceptions, the statute supplies the teeth: a provision that tries to require assignment of a protected invention is not merely unenforceable as drafted but declared contrary to public policy [^nc-57-1-void]. "To the extent a provision in an employment agreement purports to apply to the type of invention described, it is against the public policy of this State and is unenforceable."[^nc-57-1-void] One feature distinguishes North Carolina from the California and New York carve-outs: the statute places the burden of proof on the employee. An employee claiming a given invention falls within the § 66-57.1 exclusion must establish that it qualifies [^nc-57-1-burden]. "The employee shall bear the burden of proof in establishing that his invention qualifies under this section."[^nc-57-1-burden] Because North Carolina, like California, renders an overreaching provision unenforceable rather than rewriting it, a drafter should limit the assignment to what § 66-57.1 allows and carve out the protected own-time inventions in the text itself rather than trusting a court to pare an assign-everything clause back into compliance. ## Must a North Carolina employer notify the employee? {#employee-notice} **Short answer.** No. This is the key contrast with California, which requires a written notice under Labor Code § 2872, and Washington, which requires one under RCW 49.44.140(3). North Carolina's §§ 66-57.1 and 66-57.2 contain no notice, disclosure-to-the-employee, or acknowledgment requirement of any kind. Section 66-57.2 regulates the employer's conduct — barring the carved-out provision as a condition of employment and permitting a mandatory invention-reporting duty — but it never conditions a compliant clause's validity on giving the employee notice of the carve-out [^nc-57-2-condition][^nc-57-1-notice]. The statutes are short and self-contained. Section 66-57.1 defines which inventions an assignment clause cannot reach and states its own remedy — unenforceability against public policy — without mentioning notice. Its text does the work through scope alone [^nc-57-1-notice]. "shall not apply to an invention that the employee developed entirely on his own time without using the employer's equipment, supplies, facility or trade secret information"[^nc-57-1-notice] Section 66-57.2 turns to the employer's side and again imposes no notice duty. What it does is forbid the employer from demanding the carved-out provision as a condition of employment, while allowing the employer to require the employee to report inventions [^nc-57-2-condition]. "An employer may not require a provision of an employment agreement made unenforceable under G.S. 66-57.1 as a condition of employment or continued employment."[^nc-57-2-condition] The contrast with the two notice states is worth flagging, because a multistate employer that built its form around the California § 2872 or Washington RCW 49.44.140(3) notice may carry that language into North Carolina and assume it is required here. It is not. The absence of a notice requirement cuts the other way too: a North Carolina employer cannot cure an overbroad assignment clause by giving notice, because § 66-57.1 makes the offending provision unenforceable regardless of what the employee was told. Some secondary summaries loosely describe a North Carolina notice obligation, but the operative statutory text imposes none. ## Who owns an invention by default in North Carolina? {#default-ownership} **Short answer.** The inventor. Absent a written assignment, the baseline rule under federal patent law — which governs who holds title to a patentable invention in North Carolina as elsewhere — is that rights belong to the employee who conceived it. The U.S. Supreme Court restated that premise in *Stanford v. Roche*, and although others may acquire an interest, that interest must trace back to the inventor. North Carolina overlays the common-law hired-to-invent doctrine, confirmed in *Speck v. North Carolina Dairy Foundation*, under which an employee engaged to invent must surrender the resulting invention; and once ownership has vested in the employer, § 66-57.2 protects it from being unwound in a later compensation dispute [^stanford-inventor][^speck-hired]. *Stanford v. Roche* anchors the default. The Court held that 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 must be measured [^stanford-inventor]. "Since 1790, the patent law has operated on the premise that rights in an invention belong to the inventor."[^stanford-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 in the invention must trace back to that inventor-grantor [^stanford-traceback]. "Thus, although others may acquire an interest in an invention, any such interest — as a general rule — must trace back to the inventor."[^stanford-traceback] North Carolina's own overlay is the hired-to-invent doctrine. In *Speck v. North Carolina Dairy Foundation*, the Supreme Court of North Carolina held that where an employee is engaged to invent, the resulting invention belongs to the employer even without an express assignment clause [^speck-hired]. "The fruit of the labor of one who is hired to invent, accomplish a prescribed result, or aid in the development of products belongs to the employer absent a written contract to assign."[^speck-hired] *Speck* rests the doctrine on the terms of the engagement rather than on any signed assignment: if the employee is set to a prescribed inventive result and reaches it, the invention is the employer's regardless of what the employment contract says about ownership [^speck-belongs]. "if he succeeds in accomplishing the prescribed result then the invention belongs to the employer even though the terms of employment contain no express provision dealing with the ownership of whatever inventions may be developed"[^speck-belongs] The federal roots of that doctrine are older. *United States v. Dubilier Condenser Corp.* states the hired-to-invent rule the North Carolina courts follow: one employed to make an invention who succeeds during the term of service is bound to assign the resulting patent [^dubilier-hired-to-invent]. "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."[^dubilier-hired-to-invent] Once title has vested — whether by an express clause or by the hired-to-invent doctrine — North Carolina protects it against being clawed back in a pay dispute. Alongside *Morris v. Scenera Research*, in which the state's high court, assuming without deciding that the employee had been hired to invent, rejected an attempt to rescind that bargain and reclaim inventions, the 2016 amendment to § 66-57.2 bars revocation or rescission of vested invention rights in a compensation dispute — unless the written agreement provides otherwise or the employee proves the employer obtained title by fraud [^nc-57-2-rescission]. "shall not be subject to revocation or rescission in the event of a dispute between the employer and employee concerning payment of compensation or benefits to the employee"[^nc-57-2-rescission] *Morris* supplied the policy rationale the statute now codifies: on the assumption that the employee had been hired to invent, the court reasoned that such an employee should not be able to undo that bargain and recapture ownership merely because a compensation dispute later arises [^morris-vested]. "If an employee is hired to invent but could later rescind that agreement and claim ownership of inventions made during his or her employment, the employee would end up in a far better position, and the employer in a far worse position, than when the parties reached their original bargain."[^morris-vested] Both the hired-to-invent doctrine and the anti-rescission bar are narrow and fact-intensive, and neither is a substitute for a written clause. The dependable path for a North Carolina employer is a written present-assignment (*hereby assigns*) clause — present-tense language that transfers legal title automatically on conception, rather than a future promise to assign — operating within the boundaries §§ 66-57.1 and 66-57.2 impose. ## Are trailing-assignment (holdover) clauses enforceable in North Carolina? {#holdover-clause-limit} **Short answer.** Only so far as they are reasonable. Neither § 66-57.1 nor § 66-57.2 caps post-employment assignment periods, and no reported North Carolina appellate decision found in our review squarely decides whether a trailer clause reaching inventions first conceived after employment ends is enforceable. The operative lens is North Carolina's ordinary restrictive-covenant law: a holdover clause that functions as a restraint on the departing employee's ability to work would most likely be tested for reasonableness under *United Laboratories v. Kuykendall*, and — critically — North Carolina rejects judicial blue-penciling, so under *Beverage Systems* and *Whittaker* an overbroad clause is not rewritten but simply left unenforced [^nc-reasonableness][^nc-no-reformation]. Start with what the statutes do not do. Sections 66-57.1 and 66-57.2 govern which inventions an assignment clause may reach and how vested rights are protected, but they set no durational ceiling on post-employment trailing assignments and say nothing about a clause reaching inventions conceived after the employment relationship ends. North Carolina supplies no statutory analogue to California's Business and Professions Code § 16600. Because the statutes are silent, a holdover clause that restrains an ex-employee's post-departure work is most naturally analyzed under North Carolina's general restrictive-covenant standard. *United Laboratories v. Kuykendall* states the reasonableness test that governs such a restraint, upholding a covenant only where it is reasonably necessary to protect a legitimate interest [^nc-reasonableness]. "reasonably necessary to protect the interests of the covenantee, and not against public policy"[^nc-reasonableness] The framing question North Carolina courts ask is whether the restraint reaches further than the employer's protectable interest requires [^nc-reasonableness-necessary]. "whether the covenant is reasonably necessary to protect the employer from improper or unfair competition"[^nc-reasonableness-necessary] The consequence of overbreadth is the sharpest contrast with reformation states like Texas. North Carolina does not rewrite an unreasonable restraint to a reasonable one. In *Beverage Systems of the Carolinas*, the Supreme Court of North Carolina reaffirmed *Whittaker*'s rule that a court confronted with an overbroad covenant simply declines to enforce it [^nc-no-reformation]. "The courts will not rewrite a contract if it is too broad but will simply not enforce it."[^nc-no-reformation] Two points follow, framed predictively because no North Carolina appellate decision found in our review applies this reasonableness standard to an invention holdover specifically — the reported cases apply it to non-competes and non-solicits. First, an aggressive trailing clause that sweeps in an ex-employee's independent post-employment inventions would most likely be judged as a restraint of trade and tested for reasonableness. Second, because North Carolina will not blue-pencil, a clause drafted too broadly risks being struck in whole rather than narrowed — so a trailer clause narrowly tied to inventions conceived during employment, or to a short and defined trailing period for inventions derived from the employer's confidential information, stands on far firmer ground than an open-ended provision that functions as a disguised noncompete. > [!NOTE] > **Practice note.** > > Do not paper a North Carolina employee with an out-of-state assign-everything invention-assignment form. Section 66-57.1 voids an overbroad clause to the extent it reaches a protected own-time invention, and North Carolina gives no reliable blue-pencil to rewrite a violating provision, so limit the assignment to what the statute allows and expressly carve out the protected own-time inventions in the text itself [^nc-57-1-void]. North Carolina requires no § 2872-style notice, but § 66-57.2 still constrains the employer — it bars conditioning employment on the void provision and, once invention rights have vested, forbids clawing them back in a compensation dispute unless the written agreement says otherwise or the employee proves the employer obtained title by fraud [^nc-57-2-rescission]. And an aggressive holdover or trailer clause reaching inventions conceived after employment ends risks being judged an unreasonable restraint and struck in whole rather than narrowed, because North Carolina will not rewrite an overbroad covenant — keep any trailing assignment narrow, short, and tied to the employer's confidential information [^nc-no-reformation]. [^about]: By Steven Obiajulu, J.D. Published by [openagreements.org](https://openagreements.org). Last reviewed 2026-06-30. License: CC BY 4.0. Steven Obiajulu, J.D. is admitted in New York, not North Carolina. This article synthesizes North Carolina primary law and is not legal advice from a North Carolina-admitted attorney. This article is for informational purposes only and does not create an attorney-client relationship. [^nc-57-1]: **N.C. Gen. Stat. § 66-57.1** — "Any provision in an employment agreement which provides that the employee shall assign or offer to assign any of his rights in an invention to his employer shall not apply to an invention that the employee developed entirely on his own time without using the employer's equipment, supplies, facility or trade secret information except for those inventions that (i) relate to the employer's business or actual or demonstrably anticipated research or development, or (ii) result from any work performed by the employee for the employer." *N.C. Gen. Stat. § 66-57.1.* [^nc-57-1-void]: **N.C. Gen. Stat. § 66-57.1** — "To the extent a provision in an employment agreement purports to apply to the type of invention described, it is against the public policy of this State and is unenforceable." *N.C. Gen. Stat. § 66-57.1.* [^nc-57-1-burden]: **N.C. Gen. Stat. § 66-57.1** — "The employee shall bear the burden of proof in establishing that his invention qualifies under this section." *N.C. Gen. Stat. § 66-57.1.* [^nc-57-2-condition]: **N.C. Gen. Stat. § 66-57.2** — "An employer may not require a provision of an employment agreement made unenforceable under G.S. 66-57.1 as a condition of employment or continued employment. An employer, in an employment agreement, may require that the employee report all inventions developed by the employee, solely or jointly, during the term of his employment to the employer, including those asserted by the employee as nonassignable, for the purpose of determining employee or employer rights." *N.C. Gen. Stat. § 66-57.2(a).* [^nc-57-1-notice]: **N.C. Gen. Stat. § 66-57.1** — "Any provision in an employment agreement which provides that the employee shall assign or offer to assign any of his rights in an invention to his employer shall not apply to an invention that the employee developed entirely on his own time without using the employer's equipment, supplies, facility or trade secret information except for those inventions that (i) relate to the employer's business or actual or demonstrably anticipated research or development, or (ii) result from any work performed by the employee for the employer." *N.C. Gen. Stat. § 66-57.1.* [^stanford-inventor]: **Bd. of Trustees of the Leland Stanford Junior Univ. v. Roche Molecular Systems** — "Since 1790, the patent law has operated on the premise that rights in an invention belong to the inventor." *Bd. of Trustees of the Leland Stanford Junior Univ. v. Roche Molecular Sys., Inc., 563 U.S. 776 (2011).* [^speck-hired]: **Speck v. North Carolina Dairy Foundation, Inc.** — "The fruit of the labor of one who is hired to invent, accomplish a prescribed result, or aid in the development of products belongs to the employer absent a written contract to assign." *Speck v. North Carolina Dairy Foundation, Inc., 311 N.C. 679 (1984).* [^stanford-traceback]: **Bd. of Trustees of the Leland Stanford Junior Univ. v. Roche Molecular Systems** — "Thus, although others may acquire an interest in an invention, any such interest — as a general rule — must trace back to the inventor." *Bd. of Trustees of the Leland Stanford Junior Univ. v. Roche Molecular Sys., Inc., 563 U.S. 776 (2011).* [^speck-belongs]: **Speck v. North Carolina Dairy Foundation, Inc.** — "If the employee fails to reach his goal the loss falls upon the employer, but if he succeeds in accomplishing the prescribed result then the invention belongs to the employer even though the terms of employment contain no express provision dealing with the ownership of whatever inventions may be developed." *Speck v. North Carolina Dairy Foundation, Inc., 311 N.C. 679 (1984).* [^dubilier-hired-to-invent]: **United States v. Dubilier Condenser Corp.** — "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." *United States v. Dubilier Condenser Corp., 289 U.S. 178 (1933).* [^nc-57-2-rescission]: **N.C. Gen. Stat. § 66-57.2** — "An employer's ownership of an employee's invention, discovery, or development that has or becomes vested in the employer by contract or by operation of law shall not be subject to revocation or rescission in the event of a dispute between the employer and employee concerning payment of compensation or benefits to the employee, subject to any contrary provision in the employee's written employment agreement." *N.C. Gen. Stat. § 66-57.2(b).* [^morris-vested]: **Morris v. Scenera Research, LLC** — "If an employee is hired to invent but could later rescind that agreement and claim ownership of inventions made during his or her employment, the employee would end up in a far better position, and the employer in a far worse position, than when the parties reached their original bargain." *Morris v. Scenera Research, LLC, 368 N.C. 857 (2016).* [^nc-reasonableness]: **United Laboratories, Inc. v. Kuykendall** — "non-competition clauses were in partial restraint of trade, they would nevertheless be upheld if the covenants were supported by valuable consideration, reasonably necessary to protect the interests of the covenantee, and not against public policy." *United Laboratories, Inc. v. Kuykendall, 322 N.C. 643 (1988).* [^nc-no-reformation]: **Beverage Systems of the Carolinas, LLC v. Associated Beverage Repair, LLC** — "The courts will not rewrite a contract if it is too broad but will simply not enforce it." *Beverage Systems of the Carolinas, LLC v. Associated Beverage Repair, LLC, 368 N.C. 693 (2016) (quoting Whittaker Gen. Med. Corp. v. Daniel, 324 N.C. 523 (1989)).* [^nc-reasonableness-necessary]: **United Laboratories, Inc. v. Kuykendall** — "whether the covenant is reasonably necessary to protect the employer from improper or unfair competition." *United Laboratories, Inc. v. Kuykendall, 322 N.C. 643 (1988).*