IP Assignment vs License: Which Are You Really Signing?

Assignment transfers ownership. Once assigned, the work is not yours — you cannot reuse it, adapt it, or in some drafting even display it without permission from the new owner.

License grants permission to use, while ownership stays with you. It can be limited by time, territory, medium, exclusivity and purpose, and it can end.

Contracts frequently use the word "license" in the heading and assignment language in the body, or assign far more than the deal requires. The distinction decides what you own when the engagement is over.

The vocabulary that signals each

Assignment language: assigns, transfers, vests in, all right, title and interest, work made for hire, irrevocably and absolutely.

License language: grants a license, permits, the right to use, followed by qualifiers — non-exclusive, for the Term, in the Territory, for the Purpose.

A perpetual, irrevocable, worldwide, exclusive, sublicensable, royalty-free license is an assignment wearing a different hat. If you see all of those adjectives together, treat it as a transfer of ownership.

Background versus foreground IP

This is the distinction that matters most in practice, and the one most contracts get wrong by omission.

Background IP is what you brought with you: your libraries, frameworks, templates, methodologies, prior work, tools. It existed before this engagement and it will be used on the next one.

Foreground IP is what you create specifically for this client under this contract.

The correct arrangement in almost every services contract is: the client owns the foreground, you keep the background and grant a license to use it within the deliverables.

The Contractor retains all rights in Background IP and grants the Client a non-exclusive, perpetual, royalty-free license to use Background IP solely as incorporated in the Deliverables.

Without that clause, an assignment of "all intellectual property created in connection with the Services" can capture the component library you have used on every project for four years.

In employment contracts

Employment IP assignments are broader by default, and in many jurisdictions work created in the course of employment belongs to the employer automatically. The question is how far the clause reaches beyond that.

Check whether it captures work created:

• Outside working hours
• On your own equipment
• Unrelated to the employer's business
• Before you joined

Several jurisdictions limit how far such clauses can go, and some require employers to notify employees of those limits — one of the items on the employment contract checklist. But the practical protection is a schedule of pre-existing works. If you have side projects, list them in a schedule before signing. Afterwards, you are arguing about what existed when.

In brand and creator agreements

Here the assignment/license line is the whole commercial negotiation, and it is the core of any licensing agreement. A brand asking for assignment of content you created is asking for the asset. A brand asking for a twelve-month license in paid social is renting it.

The five dials on any content license:

1. Term — three months, twelve months, perpetual
2. Territory — one market or worldwide
3. Media — organic social only, or "all media now known or hereafter devised"
4. Exclusivity — can you license the same content elsewhere
5. Modification — can they edit, cut, or repurpose

Perpetual worldwide all-media rights should cost materially more than a three-month organic license. If the contract asks for the former at the price of the latter, that is the negotiation.

Moral rights

Separate from ownership: the right to be identified as the author and to object to derogatory treatment of the work. In many jurisdictions they can be waived, and standard assignments routinely waive them. In others they cannot be waived at all.

If attribution matters to you commercially — designers, photographers, writers — do not let the waiver pass unnoticed. Asking for a credit obligation instead is a normal request.

FAQ

What is the difference between an IP assignment and a license?

Assignment transfers ownership permanently. A license grants permission to use while you keep ownership, and it can be limited by time, territory, media, exclusivity and purpose.

What is background IP?

The intellectual property you already owned before the engagement — tools, libraries, templates, methods, prior work. It should be excluded from any assignment and licensed to the client instead, only as incorporated in the deliverables.

Can I reuse work after assigning the IP?

Generally no, unless the contract grants you a license back. If you want to reuse components or show the work in a portfolio, ask for those rights explicitly before signing.

Is a perpetual irrevocable license the same as an assignment?

Commercially, close to it. A perpetual, irrevocable, worldwide, exclusive, sublicensable license leaves you with bare legal title and no practical rights. Treat that combination as an assignment when pricing the deal.

Should I list my side projects before signing an employment contract?

Yes. A schedule of pre-existing works is the standard mechanism and takes ten minutes. Without it, an over-broad assignment clause and a side project that later becomes valuable is a genuinely difficult argument to win.

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