Can an employer claim ownership of side projects created without company resources?

Generally, no, provided the project does not relate to the employer's business, was not created during work hours, and did not use company equipment. However, overly broad IP assignment clauses can create legal ambiguity that requires careful contract review.

What states have laws protecting employee side projects?

States like California (Labor Code 2870), Washington, Illinois, and Delaware have specific statutes that invalidate employment agreements requiring employees to assign inventions developed entirely on their own time without company resources.

How can I protect my side projects from my employer?

Review your Proprietary Information and Inventions Agreement (PIIA), ensure you work on personal devices, avoid company time, and document the development process to prove the project is independent.

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Can an employer enforce an NDA to claim ownership of independent side projects created without company resources?

Can an employer enforce an NDA to claim ownership of independent side projects?

In most jurisdictions, an employer cannot claim ownership of side projects created entirely on your own time, using your own equipment, and unrelated to the company’s business. However, if your employment contract contains an overly broad 'Invention Assignment' clause, the employer may attempt to assert a legal claim, creating significant risk for your intellectual property.

The Legal Framework of IP Assignment

Most employment contracts include a Proprietary Information and Inventions Agreement (PIIA). These clauses are designed to protect the employer's trade secrets and ensure that work produced within the scope of your employment belongs to the company. The conflict arises when these clauses are drafted to cover 'any and all inventions' conceived during the term of employment, regardless of whether they relate to the company's business.

The Three-Prong Test for Independence

To determine if a project is truly yours, courts typically look at whether the work meets these three criteria:

No Company Resources: You did not use company hardware, software, proprietary data, or office space.
No Company Time: The work was performed entirely outside of your contracted working hours.
No Business Relation: The project does not relate to the employer's actual or demonstrably anticipated business, nor does it result from work performed for the employer.

Key takeaway: If your side project involves technology or markets that overlap with your current employer's business, you are at high risk of an ownership dispute, regardless of whether you used company resources.

Jurisdictional Protections

Several states have enacted legislation to prevent employers from overreaching. These laws essentially override overly broad contract language.

State	Statute	Key Protection
California	Labor Code 2870	Invalidates agreements requiring assignment of inventions developed on own time without employer resources.
Washington	RCW 49.44.140	Protects inventions developed on own time unless they relate directly to the employer's business.
Illinois	765 ILCS 1060/2	Limits assignment of inventions to those related to the employer's business or actual/anticipated research.

If you reside in a state without these specific protections, you are governed by common law, which often favors the employer if the contract language is broad and unambiguous.

How to Protect Your Intellectual Property

Proactive management of your employment agreement is the best defense against future litigation. Follow these steps to insulate your side projects:

Audit your PIIA: Identify the specific definition of 'Inventions' in your contract. Look for phrases like 'any invention conceived during employment.'
Maintain Strict Separation: Never use a company laptop, Slack account, or email address for your side project. Use a separate machine and personal cloud storage.
Document Everything: Keep a log of development hours and a list of tools used. This serves as evidence if you need to prove the project was created independently.
Disclose (If Necessary): In some cases, it is safer to disclose the project to your employer and obtain a written waiver or 'carve-out' for that specific project.

Red Flags in Employment Contracts

When reviewing your contract, watch for these specific red flags that indicate an employer is attempting to claim ownership of your personal work:

'Any and All' Language: Clauses that claim ownership of any idea conceived during the term of employment, regardless of subject matter.
Broad Definition of 'Business': Definitions that include 'any business the company may enter in the future,' which effectively covers almost any industry.
Lack of Carve-outs: The absence of an 'Excluded Inventions' section where you can list pre-existing projects.

Key takeaway: If your contract lacks an 'Excluded Inventions' list, you should request an addendum to document your existing side projects before you sign or as soon as you begin a new project.

Conclusion

While the law generally protects your right to innovate outside of your employment, the burden of proof often falls on you. By maintaining strict separation of resources and understanding the specific language of your PIIA, you can mitigate the risk of your employer claiming your hard work. TermScore can automatically analyze your employment contract to identify these aggressive IP assignment clauses, helping you understand your risks before you sign or launch your next project.