Due diligence on chain of title: costs drivers
Chain-of-title due diligence checks whether every right behind a licence or a transfer traces back to a valid owner, without gaps, missing signatures or unresolved disputes. What it costs depends on how many registers must be checked, how many jurisdictions are involved, how old the portfolio is, and whether a deadline or an opponent is already in play. A clean, single-jurisdiction file with recent registrations moves quickly. A decades-old portfolio with several assignments abroad does not.
Why the cost varies
The check itself is always the same exercise: line up every agreement, every assignment and every register entry, and confirm that the rights actually reached the party that is licensing or selling them. What changes from file to file is how much has to be lined up, and how much of it is missing.
| Cost driver | Effect on the check |
|---|---|
| Number of registers to check | Each additional register adds a separate search and a separate confirmation step. |
| Number of jurisdictions | Cross-border rights need a register search and a document review in each country involved. |
| Age and length of the assignment chain | Older chains have more links, and more chances for one link to be missing. |
| Missing or unsigned assignments | A gap has to be closed before the file can be relied on, which adds a chasing step. |
| Whether a deadline has already started | A running deadline compresses the review into a shorter window. |
| Presence of an opponent or a dispute | A contested right needs a separate risk note alongside the ownership check. |
None of these drivers is fixed in advance. They are read off the file once the first set of documents arrives, which is why the scope is confirmed at the start of the engagement rather than assumed from the outset.
Steps to run the check
- Collect every licence, assignment and transfer agreement you hold, including drafts and unsigned versions.
- Instruct the reviewing lawyer to map the chain register entry by register entry, from the original creator to the current holder.
- Request the missing signature or confirmation from the prior owner as soon as a gap is identified.
- Record any newly perfected assignment with the relevant register without delay once it is signed.
- Put unresolved gaps to the other side's counsel in writing, with a response deadline attached.
- Hold the closing date until the file is complete, or agree a warranty covering the open point instead.
Who decides and how long it takes
The reviewing lawyer decides whether the file is complete enough to rely on. The relevant register decides whether an assignment is validly recorded once it is filed. If a right is already contested, the forum handling that dispute decides its validity, and the chain-of-title check simply notes the outcome as a risk. A single-jurisdiction file with no gaps is typically confirmed within a few working days; a multi-jurisdiction file with missing assignments takes longer, in proportion to the number of gaps found.
Common scenarios
If the chain is complete and confined to one jurisdiction, the check finishes quickly and the transaction proceeds on schedule.
If one assignment in the chain was never signed, closing is delayed until the missing signature is obtained, or the parties agree a warranty and indemnity to cover that gap instead. Situations of this kind often start with a founder or an employee who left before the assignment was completed; see Industrial manufacturing a founder leaves with the prototype.
If the underlying right includes a tokenised or digital component, the chain has to be checked against the platform's own record as well as the public register, because the two do not always match; see When the buyer of a token is not the.
If the validity of the underlying trade mark or patent is already contested, the ownership check has to run alongside that dispute rather than instead of it; see Invalidity and revocation.
What this check does not cover
A chain-of-title check confirms who holds the right today and how it got there. It does not value the right, and it does not predict the outcome of a dispute over its validity. Where no register entry exists at all, for example with unregistered rights, the check can only report what the underlying agreements show, not what a register would confirm. Where the file will later be recorded against a licence, the recordal step itself is a separate procedure, not part of this check; see Recordal of a licence step by step.
Verified
This page was last reviewed on 4 March 2025. It draws on public IP registers, company register extracts, and the documents produced during chain-of-title engagements handled by the firm. It does not draw on court filings, since validity disputes are treated separately from the ownership check. Once a file closes, what we keep of it and for how long is explained in Retention: the report, the extracts and our copy explained.
Frequently asked questions
How long does due diligence on chain of title take in practice?
A single-jurisdiction file with a complete chain is usually confirmed within a few working days. A file spanning several jurisdictions or containing missing assignments takes longer, roughly in line with the number of gaps that need chasing.
Which documents are needed to start?
Every licence, assignment and transfer agreement connected to the right, including unsigned drafts, plus the register extract for each relevant jurisdiction. Missing documents can be identified once the review starts, but the file cannot open without at least the current holder's own papers.
What happens if the other side does not respond?
The gap is recorded as open and flagged as a risk in the file. Depending on how the transaction is structured, closing is either held until a response arrives, or the parties agree a warranty and indemnity that shifts that risk instead of waiting for it to close.
Related publications
For the step that follows a completed chain-of-title check, see Recordal of a licence step by step.
A first response from a partner arrives within minutes during working hours. A price for the specific file follows within one working day, once the scope above has been confirmed. If counterfeit goods and a trade mark are part of the same dispute, see Customs stops counterfeit goods trade mark what it costs.