When an assignment breaks the chain of title: what it costs to be wrong
An assignment that fails to properly transfer a trade mark, software copyright, database right, or patent leaves a gap between the original owner and today's claimant. Every later licence, sale, or security interest built on that gap can be challenged. The cost of being wrong is not the correction — it is everything signed afterwards.
The legal basis
Which act governs the break depends on the right in question. Regulation (EU) 2017/1001 (EUTMR) sets the register and the formal requirements for a valid transfer of an EU trade mark. Directive 2009/24/EC defines what rights in a computer program pass under an assignment, and what stays with the author absent an explicit term. Directive 96/9/EC does the same for the maker's right in a database. Regulation (EU) No 1257/2012 governs how a transfer is registered once a patent has unitary effect.
None of these acts cures a defective assignment on its own. Each one sets the standard a correctly executed assignment must meet, and against that standard the missing link becomes visible.
What breaks in practice
A chain of title breaks when one link in the sequence of transfers cannot be proven: the assignor did not hold the right at the time of signing, the assignment named the wrong entity, or no assignment was ever executed and the parties relied on an invoice or a verbal understanding instead.
The immediate effect is not that the right disappears. It is that everyone who took a licence, bought the business, or lent against the IP as security now holds a position built on a missing or mismatched document. What everyone assumed the paperwork said may not be what it actually said.
Correcting the record after the fact is usually possible. What it costs is the interval between signing and correction — every act taken during that interval, from sub-licensing to litigation, inherits the same defect.
What to do, in order
- Instruct the IP team to pull the original assignment documents for every step in the chain — summaries and register extracts are not enough.
- Compare each transfer against the register or repository that applies to the right: the EUIPO record for a trade mark under Regulation (EU) 2017/1001 (EUTMR), the source code repository and licence history for software under Directive 2009/24/EC.
- Mark the exact point where continuity fails — the missing signature, the wrong corporate entity, the assignment that was drafted but never signed.
- Have counsel prepare a confirmatory assignment or a deed of ratification, executed by the original party if that party still exists.
- File the correction with the relevant register immediately — a gap between the ratification date and the filing date is itself a new weak point.
- Notify every counterparty who relied on the broken link, including licensees, buyers under warranty, and any lender holding the IP as security.
Who decides, and on what evidence
A register office — the EUIPO for an EU trade mark — checks formal validity: signatures, dates, and the identity of the parties named in the assignment. It does not investigate who should have owned the right before the first transfer.
A court decides that question, and only once a dispute is filed. It looks at the same documents the register saw, plus anything extrinsic: correspondence, invoices, conduct showing what the parties believed at each stage.
Until a dispute is filed, the parties themselves decide by negotiation. A ratification signed by both sides resolves most breaks without ever reaching a register or a court.
| Right | Governing act | Typical break |
|---|---|---|
| EU trade mark | Regulation (EU) 2017/1001 (EUTMR) | Assignment not recorded, or recorded against the wrong applicant |
| Computer program copyright | Directive 2009/24/EC | No written assignment, or scope of exploitation rights left undefined |
| Database right | Directive 96/9/EC | Identity of the maker unclear at the point of transfer |
| Unitary patent | Regulation (EU) No 1257/2012 | Transfer of unitary effect not registered before a later licence is granted |
Three forks
If the break sits in a trade mark chain and a rebrand already went ahead on the strength of it, the branding decision and the title problem now have to be untangled together — see A rebrand collides with an earlier right trade mark.
If the assigning entity was a subsidiary and the parent company has been the one exploiting the result, the chain may never have included the right owner in the first place. That is a separate and earlier problem, covered in When a subsidiary paid for work the parent uses.
If the right has already been tokenised and licences issued downstream on-chain, correcting the chain of title does not recall tokens already in circulation — see When a licence terminates but the token remains in.
What this page does not cover
This page does not establish who held the right before the first assignment in the chain. That is a question of fact, decided on the evidence described above. It does not calculate the value lost while the chain was broken.
Where correcting the record involves third parties who hold documents on our behalf, their handling of that material is described separately, not here — see Subprocessors, including local delivery partners in practice.
Verified
Checked against Regulation (EU) 2017/1001 (EUTMR), Directive 2009/24/EC, Directive 96/9/EC, and Regulation (EU) No 1257/2012, as published on EUR-Lex. Last checked April 2025.
Related situations
A break follows the same pattern when it starts with two parties disputing a licence, rather than a defective transfer — see Improvements are claimed by both sides IP licence what.
FAQ
What is the first step when an assignment breaks the chain of title?
Pull every original assignment in the sequence and compare it against the register that applies to the right — the EUIPO record for a trade mark under Regulation (EU) 2017/1001 (EUTMR), or the licence history for software under Directive 2009/24/EC. The gap is usually visible once the documents are laid out in order.
Which deadline is already running?
There is no single fixed date. The exposure runs from the moment the defective transfer took effect, not from when the defect was discovered. The longer the record stays uncorrected, the more later transactions — licences, sales, security grants — inherit a chain that cannot be proven.
Who decides, and on what evidence?
A register office checks formal validity: signatures, dates, and the identity of the parties named in the assignment. Once a dispute is filed, a court decides the underlying ownership question by examining the same documents together with correspondence and conduct showing what the parties believed at each stage.