Employee Invention Assignment in Kentucky

Can a Kentucky 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. Nothing in KRS Chapter 336 (labor and employment) or KRS Chapter 365 (trade practices, where the Kentucky Uniform Trade Secrets Act sits at KRS 365.880 to 365.900) addresses employee inventions, and Kentucky appears on no list of the states — California, Delaware, Illinois, Kansas, Minnesota, Nevada, New Jersey, New York, North Carolina, Utah, and Washington — that have enacted a § 2870-style own-time carve-out. Searches for a Kentucky invention statute sometimes surface the Kentucky Consumer Data Protection Act, KRS 367.3611 to 367.3629; that is a consumer-privacy law, not an employee-invention statute. The adjacent employment statutes that do exist — the trade-secrets act, a narrow restriction on non-compete terms for temporary direct care staff placed by health care services agencies (KRS 216.724), and a prohibition on requiring employees to waive certain statutory rights as a condition of employment (KRS 336.700) — regulate other things; none reaches what an invention-assignment clause may capture.

What Kentucky supplies instead is a common-law frame. In the Dorton litigation — two appeals decided by the Kentucky Court of Appeals when it was the Commonwealth's highest court — the employer's entitlement to an invention its employee perfected on the job, absent a contract giving it more, was a shop right, meaning the right to use the invention in its business without paying royalties A.1.

“An examination of the authorities cited in that opinion on this question, including 35 Am. Jur., Master and Servant, section 95, will show that the inference is that the employer has the right to use an invention of its employee in its business without the payment of royalties.”

The substantive default that 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 Kentucky employer can, in principle, contract for assignment more broadly than a California or Washington employer, because no statute carves out own-time inventions from the reach of the clause. That breadth is still not unlimited — an assignment clause is an ordinary contract term subject to contract-law defenses, and where it operates as a restraint on the former employee it invites Kentucky's general reasonableness scrutiny of restraints of trade, discussed in the trailing-clause question below. But there is no statutory own-time safe harbor for the employee to invoke and no statutory ceiling for the drafter to code around.

Must a Kentucky 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; Kentucky 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 Kentucky does not have.

Where Kentucky law does give the employer rights in an employee's invention without a contract, it does so by inference from the employment relationship, not by a statute that must be disclosed. The Dorton litigation locates the employer's default entitlement — a royalty-free right of use — in the common-law authorities on master and servant, with no statutory notice apparatus attached B.1.

“An examination of the authorities cited in that opinion on this question, including 35 Am. Jur., Master and Servant, section 95, will show that the inference is that the employer has the right to use an invention of its employee in its business without the payment of royalties.”

For a multistate employer the takeaway is the inverse of the notice states: a Kentucky 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 Kentucky?

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.4.

“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. No Kentucky appellate decision found in our review articulates the hired-to-invent doctrine as a matter of Kentucky common law, so on that point the federal formulation is the analogous — and nonbinding — doctrine a Kentucky court would most likely consult.

“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 hired-to-invent, the employer's remedy is the equitable shop right — a non-exclusive license to use the invention, not ownership of it. Dubilier states the classic formulation C.5.

“Recognition of the nature of the act of invention also defines the limits of the so-called shop-right, which shortly stated, is that where a servant, during his hours of employment, working with his master's materials and appliances, conceives and perfects an invention for which he obtains a patent, he must accord his master a non-exclusive right to practice the invention.”

Kentucky's own courts adopted that framework in the Dorton litigation, a pair of appeals decided by the Kentucky Court of Appeals when it was the Commonwealth's highest court. On the first appeal, in 1945, the court characterized the trial testimony as tending to establish an entitlement to shop rights — the right to use the invention without paying royalty C.6. On the second appeal, in 1946, the court grounded that entitlement in the master-and-servant authorities: the employer of an employee-inventor may use the invention in its business without paying royalties C.3.

“An examination of the authorities cited in that opinion on this question, including 35 Am. Jur., Master and Servant, section 95, will show that the inference is that the employer has the right to use an invention of its employee in its business without the payment of royalties.”

A use right is not title. Because ownership therefore starts with the inventor and Kentucky 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 Kentucky?

Three gaps define the Kentucky picture. First, there is no statute: nothing in the KRS caps what a post-employment trailing assignment may reach, and the only enacted restriction on restrictive covenants, KRS 216.724, is a narrow health-care temporary-staffing provision that has nothing to do with invention assignment. Second, our review found no Kentucky appellate decision applying any standard to an invention-holdover clause. Third, whether a Kentucky court would even classify a trailing-assignment clause as a restraint of trade — rather than as a pure intellectual-property assignment outside covenant doctrine — is itself undecided.

The absence of in-state authority is easy to overstate, because one federal decision sits in a Kentucky forum. In N. Harris Computer Corp. v. DSI Investments, LLC, the Western District of Kentucky upheld a one-year holdover clause — but it analyzed the clause under North Carolina law, applying that state's restrictive-covenant reasonableness cases and the invention-assignment statute the parties cited, because the parties agreed North Carolina law controlled D.1. The decision is at most persuasive color for how a holdover clause can be litigated; it is not Kentucky law.

“The parties agree that North Carolina law governs the interpretation, validity, and enforcement of the Assignment.”

What Kentucky does supply is a general reasonableness standard for agreements in restraint of trade. The formulation Kentucky courts quote comes from Ceresia v. Mitchell, decided by the Kentucky Court of Appeals in 1951 when it was the Commonwealth's highest court, as restated in Hammons v. Big Sandy Claims Service, Inc. by the post-1976 intermediate Court of Appeals D.2.

“Also, it has been held in Kentucky that an agreement in restraint of trade is reasonable if, on consideration of the subject, nature of the business, situation of the parties and circumstances of the particular case, the restriction is such only as to afford fair protection to the interests of the cove-nantee and is not so large as to interfere with the public interests or impose undue hardship on the party restricted.”

Consideration is the second Kentucky doctrine a holdover fight would likely engage. In Charles T. Creech, Inc. v. Brown, the Supreme Court of Kentucky refused to enforce a restrictive agreement that an employee, Brown, signed years into his at-will employment, because he received nothing new in exchange for signing it D.3.

“He remained an at-will employee with no promotion, no increase in wages, and no specialized training. In short, Brown received no consideration from Creech in exchange for signing the Agreement or after he signed the Agreement. Therefore, the Agreement is not enforceable.”

Extending either doctrine to a trailing invention assignment is a prediction, not a holding. If a Kentucky court treats a holdover clause as a restraint of trade, the Ceresia standard restated in Hammons points toward asking whether the clause affords fair protection to the employer without imposing undue hardship on the former employee or the public — which would put an open-ended trailer that sweeps in everything an ex-employee invents at meaningful risk. If the court instead treats the clause as a pure assignment of property outside covenant doctrine, no Kentucky authority found in our review says what limit, if any, applies. Either way, the precise standard for invention holdovers in Kentucky has not been decided.