IP assignment agreement under Spanish law (cesión de propiedad intelectual)
This agreement assigns exploitation rights in a work, software or other intellectual property under the Spanish Intellectual Property Act (LPI). It is built around the Spanish rules that only expressly assigned rights pass and that the author's moral rights cannot be waived or transferred.
- Jurisdictions
- Spain
- Contract languages
- Spanish, English
What it is and when it is used
This is an IP assignment agreement drafted natively under Spanish law: the Intellectual Property Act (Real Decreto Legislativo 1/1996, the LPI), and, for registered rights, the Patents Act 2015 and the Trademarks Act 2001. It is used when a business acquires exploitation rights (reproduction, distribution, public communication and transformation) in a work, software, database or design from its author or owner.
Spanish law reads IP assignments restrictively: under article 43 of the LPI, rights or modes of exploitation that are not expressly assigned stay with the Assignor, and, unless otherwise agreed, the territory is limited to the country concerned. The agreement is drafted with this rule in mind.
Who signs it and in which role
- The Assignee (cesionario/a), who acquires the rights.
- The Assignor (cedente), the author or owner who transfers them.
Key clauses
Scope of assignment
The scope can be total (all exploitation rights for all known modes), specific (the modes listed in an annex, with the rest retained), or limited (agreed modes in a restricted territory).
Exclusivity
An exclusive assignment means only the Assignee may exploit the IP, not even the Assignor (article 48 LPI). A non-exclusive one lets the Assignor license others. A temporary exclusive assignment becomes non-exclusive after an initial period.
Moral rights
Moral rights cannot be waived, so the options are practical: full respect, including integrity and withdrawal; a "pragmatic" commitment not to exercise moral rights so as to unreasonably hinder normal exploitation, except integrity; or exercising only the right to be named.
Consideration
A lump sum, royalties proportional to exploitation revenue (the general rule under article 46 LPI), or a mixed model with an advance against future royalties.
Assignor representations
Broad (originality, ownership, non-infringement, no encumbrances, plus indemnity), limited (ownership and capacity only), or minimal (capacity only, IP assigned "as is").
Pre-existing IP
Listed in an annex and excluded but licensed perpetually and free of charge to the Assignee; listed and excluded with any licence to be negotiated separately; or no exclusion, so everything delivered is assigned.
Duration
The full legal duration of the rights, a fixed term with reversion to the Assignor, or the five-year statutory default.
Dispute resolution
Commercial Courts, institutional arbitration, or mediation followed by the Commercial Courts.
Standard terms cover delivery of source files within ten business days, 30 days of free technical assistance, registration with the Spanish Patent and Trademark Office (OEPM) at the Assignee's cost where relevant, enforcement against infringers, three years of confidentiality, and the express acknowledgement of moral rights.
What the two sides usually negotiate
The Assignee wants a total, exclusive and long assignment with broad warranties. The Assignor wants to keep some modes, territories or time, and to limit warranties. Dealroom proposes the balanced positions in the skill as the middle ground: a specific scope listed in an annex, mixed consideration (advance plus royalties), limited warranties on ownership and capacity, and mediation followed by the Commercial Courts. On exclusivity and duration, the options closest to the centre are a temporary exclusive assignment and a fixed term. For moral rights, every option leans to one side: full respect favours the Assignor, attribution only favours the Assignee.
Jurisdictions and languages Dealroom supports for it
This agreement is offered for Spain only, drafted in Spanish or English. It applies Spanish law, the good-faith principle of the Civil Code and the restrictive reading of article 43.1 LPI, with the specific software rules of articles 95 to 104 LPI applying where the assigned IP includes software. For California or England and Wales, use the IP assignment agreement.
Common mistakes
- Leaving modes of exploitation unstated. Any mode not mentioned is deemed not transferred.
- Leaving out the duration. Without a term, the assignment lasts only five years.
- Trying to waive moral rights. Such a clause has no effect; use a non-exercise commitment instead.
- Assigning without consideration. It may be challenged for lack of cause under article 1274 of the Civil Code.
- Not separating pre-existing IP. Without a list, the Assignor may hand over prior work by accident.
- Not registering industrial property. Registration is needed for the assignment of patents to be effective against third parties.
Frequently asked questions
Can moral rights be waived in a Spanish IP assignment?
No. Article 14 of the LPI makes moral rights inalienable and impossible to waive. The agreement instead offers practical options: full respect for all moral rights, a commitment by the Assignor not to exercise them so as to unreasonably hinder normal use (integrity excepted), or exercising only the right to be named as author.
How long does an IP assignment last in Spain if no term is agreed?
Under article 43.2 of the LPI, an assignment with no stated duration is limited to five years. The agreement lets the parties choose the full legal duration of the rights, a fixed term after which rights revert, or the five-year default, renewable by agreement.
Is a lump-sum payment valid for a Spanish IP assignment?
Article 46 of the LPI makes proportional remuneration, based on exploitation revenue, the general rule, and article 46.2 lists cases where a lump sum is valid. The agreement offers a lump sum, royalties, or an advance plus royalties. An assignment without consideration may be challenged.
Which courts hear disputes over a Spanish IP assignment?
IP disputes fall under the exclusive jurisdiction of the Commercial Courts (Juzgados de lo Mercantil). The agreement also offers institutional arbitration, or mandatory mediation first with the Commercial Courts as the fallback.
Two ways to make it
Create it in Dealroom
Choose the jurisdiction and language, answer a few questions and negotiate each clause with the other side, or prepare it alone.
Start in DealroomHave your agent draft and negotiate it
Your AI agent can read the clause library and create the contract through the agent API or the MCP server. A short example:
MCP: list_templates (query: "CESION_PI"), get_template, create_playbook, initiate_negotiation.
# 1. Read the clauses, options and the facts it needs
curl https://dealroom.todo.law/api/v1/agent/templates/CESION_PI \
-H "Authorization: Bearer drk_YOUR_KEY"
# 2. Create the contract (clauses you leave out take the default option)
curl -X POST https://dealroom.todo.law/api/v1/agent/deals \
-H "Authorization: Bearer drk_YOUR_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"schema": "dealroom.solo-intake/1",
"contractType": "CESION_PI",
"governingLaw": "SPAIN",
"language": "en",
"dealName": "Example CESION_PI",
"selectionPolicy": "defaults"
}'Drafting and negotiating are free.
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This page explains how the contract usually works. It is general information, not legal advice.