Skip to content
BUSINESS LITIGATION · INTELLECTUAL PROPERTY

Joby–Archer Trade-Secret Ruling: What California Companies Can Protect When an Employee Leaves for a Competitor

By Omeed Mahrouyan · Published October 4, 2026 · Last reviewed October 4, 2026
Employee mobility, company data, and trade-secret protection in the Joby-Archer eVTOL dispute involving Hawthorne Airport
Illustrative editorial graphic. Not a depiction of the parties, their aircraft, or the court proceeding.

A federal court’s Joby-Archer ruling highlights what California businesses can protect when employees leave for competitors, including trade secrets, company files, and return-of-property obligations.

California strongly protects an employee’s ability to change jobs—even when the new employer is a direct competitor.

But that does not mean an employee is free to take company files, retain protected trade secrets, or disregard valid obligations to return company property.

A September 29, 2026 federal court ruling in Joby Aero, Inc. v. Archer Aviation Inc. illustrates the distinction.

The U.S. District Court for the Northern District of California narrowed portions of Joby’s lawsuit against rival electric-aircraft developer Archer Aviation and former Joby employee George Kivork. At the same time, the court allowed several theories to proceed, including a trade-secret theory involving Hawthorne Airport in Los Angeles County.

The ruling is preliminary. The court was deciding motions to dismiss—not whether Archer or Kivork actually misappropriated Joby’s trade secrets. Still, the decision offers practical lessons for California companies trying to protect sensitive information when an employee leaves for a competitor.

What Joby Alleges

Joby and Archer compete in the developing electric vertical-takeoff-and-landing, or eVTOL, aircraft industry.

According to Joby’s amended complaint, Kivork downloaded dozens of company files shortly before announcing his resignation in July 2025 and sent certain files to a personal email account. He later joined Archer. Those remain allegations, not established facts.

Joby asserted claims involving breach of contract, inducement of breach, violations of the federal Defend Trade Secrets Act (18 U.S.C. §§ 1836, 1839), and related California law claims. The September 29 order allowed some theories to continue and dismissed others.

California’s Noncompete Rule Has Limits—but So Do Confidentiality Restrictions

California Business and Professions Code section 16600 reflects the state’s strong policy favoring employee mobility.

In an earlier ruling in the case, the court concluded that a particular continuing confidentiality provision in Kivork’s agreement with Joby operated as an unenforceable de facto noncompete. In the September 29 order, the court struck allegations that continued to rely on that provision.

That does not mean California prohibits confidentiality agreements generally. Instead, the ruling illustrates a drafting problem: a confidentiality restriction can become vulnerable when its scope effectively prevents a former employee from working in the employee’s field rather than legitimately protecting defined confidential information or trade secrets.

Businesses should therefore distinguish between protecting proprietary information and attempting to restrain lawful competition.

Restrictions During Employment Are Different

The court reached a different conclusion regarding another provision of Kivork’s agreement. That provision prohibited him, while still employed by Joby, from assisting another person or organization in competing with Joby.

Because the restriction applied only during employment, the court held that it did not violate section 16600. The court therefore allowed Joby’s contract theory to proceed to the extent it concerned alleged conduct occurring while Kivork was still working for Joby.

For California businesses, the distinction matters: the state’s strong protection of post-employment mobility does not necessarily prevent an employer from enforcing obligations governing competitive conduct during the employment relationship.

Return-of-Company-Property Obligations Can Matter Independently

Joby’s agreement also contained an Item Return provision requiring company materials to be returned. The court allowed Joby’s claim against Archer for allegedly inducing a breach of that provision to proceed.

That provides a practical reminder that an employer does not need to rely exclusively on a sweeping confidentiality clause when an employee departs. Well-drafted agreements and offboarding procedures—part of sound startup and business transactions planning—can separately address:

  • return of company devices and documents;
  • deletion or return of electronically stored information;
  • access to cloud accounts and shared drives;
  • certification that company materials have been returned; and
  • preservation of evidence when unusual downloads or transfers are detected.

Those obligations can be particularly important when questions later arise over whether company information was retained after departure.

The Hawthorne Airport Trade-Secret Theory Survived

One of the most locally significant portions of the decision concerns Hawthorne Airport in Los Angeles County.

Joby alleges that it developed contacts and strategy concerning the potential use of Hawthorne Airport as a vertiport and maintenance facility. It further alleges that Kivork downloaded files containing Hawthorne-related contacts and strategy before leaving Joby, and that Archer later obtained a long-term lease involving the airport.

At this stage, the court did not find that Archer actually used Joby’s trade secrets. Instead, it held that the alleged sequence of events and surrounding circumstances were enough to support a plausible inference of use at the pleading stage. The court therefore allowed the Hawthorne Airport past-misappropriation theory to proceed.

That distinction is critical: surviving a motion to dismiss is not a finding of liability.

Other Trade-Secret Theories Were Narrowed

Joby did not prevail across the board. Although the court found that the amended complaint identified its alleged trade secrets with sufficient particularity, it concluded that Joby had not plausibly alleged past misappropriation for most of the asserted categories. Apart from the Developer Agreement and Hawthorne Airport theories, those past-misappropriation theories were dismissed with leave to amend.

For example, the court found Joby’s allegations concerning a potential Los Angeles Dodgers sponsorship insufficient to plausibly plead past misappropriation. The court nevertheless permitted Joby’s allegations of threatened misappropriation to proceed as to the specifically identified trade secrets.

The result illustrates another important lesson: describing information merely as “confidential,” “proprietary,” or “business strategy” is not necessarily enough. A trade-secret plaintiff must identify the information being protected with sufficient specificity and plausibly connect the alleged misuse to that information.

The order also dismissed Archer’s Lanham Act and unfair-competition counterclaims without leave to amend. Archer disclosed the ruling in a Form 8-K filed with the SEC, describing it as narrowing some claims while allowing others to proceed.

What California Businesses Can Take From the Ruling

The Joby-Archer dispute highlights two principles that coexist under California law. Employees generally remain free to leave and compete. But businesses can still take lawful steps to protect genuine trade secrets, secure the return of company property, control access to sensitive information, and enforce appropriate obligations relating to conduct during employment.

For companies concerned about employee departures, practical protection often starts before a dispute arises. That may include:

  • clearly identifying sensitive information;
  • limiting access based on business need;
  • maintaining usable access and download logs;
  • using carefully drafted return-of-property provisions;
  • promptly terminating electronic access at departure;
  • conducting structured offboarding;
  • preserving evidence when suspicious transfers occur; and
  • avoiding contractual restrictions that function as unlawful post-employment noncompetes.

The goal is not to prevent lawful employee mobility. It is to distinguish legitimate competition from the unauthorized retention or misuse of legally protectable company information.

Trade-Secret and Business Disputes in California

Employee departures can create overlapping issues involving contracts, intellectual property, business competition, electronic evidence, and trade-secret law.

Mahrouyan Law, P.C. advises businesses and startups concerning commercial agreements, intellectual-property protections, and selected business and trade-secret disputes.

For a related discussion concerning protection of proprietary information shared between businesses, see our analysis of the AI startup trade-secret lawsuit involving Perplexity.

Frequently Asked Questions

Are employee confidentiality agreements enforceable in California?

Potentially. California strongly restricts agreements that operate as noncompetes, but the Joby-Archer ruling should not be described as invalidating confidentiality agreements generally. Enforceability depends on the language and circumstances.

Can a California employee leave to work for a competitor?

Generally, California strongly protects employee mobility. That does not necessarily permit an employee to retain company property, misuse legally protected trade secrets, or violate enforceable obligations applicable during employment.

Can a company require an employee to return company files after leaving?

Return-of-property obligations can be independently significant. In the Joby-Archer case, the court allowed a theory based on Joby’s Item Return provision to proceed even though a broader confidentiality-based theory was dismissed.

Did the court find that Archer stole Joby’s Hawthorne Airport trade secrets?

No. The court was deciding a motion to dismiss. It held that Joby’s Hawthorne allegations were sufficiently plausible to proceed; it did not determine that misappropriation actually occurred.

Sources & Authorities

Mahrouyan Law handles these matters directly. Read more about how the firm approaches small business & commercial litigation in California, or discuss your own situation with the firm.

Concerned About a Departing Employee?

If your business is dealing with the departure of an employee or contractor who had access to sensitive company information, contact Mahrouyan Law, P.C. to discuss the circumstances and available options.

Omeed Mahrouyan, founder of Mahrouyan Law, P.C.
Omeed Mahrouyan
Founder & Principal Attorney
Mahrouyan Law, P.C.
California Bar No. 352171 · State Bar profile

Omeed Mahrouyan is the founder of Mahrouyan Law, P.C., a California firm handling business and commercial litigation, property and cargo damage claims, personal injury, landlord representation, startup transactions, and practical intellectual property matters. Clients work directly with him on strategy, drafting, and case decisions.

More about Omeed Mahrouyan →