Design Right Infringement: UK Registered and Unregistered Design Protection

Last updated: March 2026

Quick Answer

The UK offers two distinct forms of design protection: registered designs (under the Registered Designs Act 1949) and unregistered design right (under Part III of the Copyright, Designs and Patents Act 1988). Each has different requirements for subsistence, scope of protection, and infringement tests. Court bundles for design right claims must include clear visual evidence of the design, proof of ownership, evidence of the infringing article, and — for registered designs — the registration certificate. For unregistered design right, you must additionally prove that the defendant copied your design, as independent creation is a complete defence.

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Two Systems, One Goal

The United Kingdom's dual system of design protection can be confusing, even for experienced practitioners. You have, on one hand, a registration-based system offering monopoly protection for up to 25 years. On the other, an automatic right that requires no formality but offers narrower protection for a shorter period. Both systems exist to protect the visual appearance of products — but they do so in fundamentally different ways.

Understanding which right applies to your situation is the essential first step. Getting it wrong means building your evidence around the wrong legal test, which is a mistake that no amount of bundle formatting can remedy.

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UK Registered Designs

What a Registered Design Protects

A UK registered design protects the appearance of a product — specifically, its lines, contours, colours, shape, texture, materials, and ornamentation. Registration is obtained through the UK Intellectual Property Office (UKIPO) and provides a monopoly right, meaning that the owner can prevent anyone from using the design without permission, regardless of whether the infringer copied the design or arrived at it independently.

This is a critical distinction from unregistered design right. With a registered design, you do not need to prove copying. If someone produces a product that creates the same overall impression as your registered design, that is infringement — full stop.

Requirements for Registration

To be registrable, a design must be:

1. New — it must not be identical to any design previously made available to the public
2. Have individual character — the overall impression it produces on an informed user must differ from the overall impression produced by any pre-existing design

Certain features are excluded from registration:

• Features dictated solely by the product's technical function
• Features that must be reproduced in their exact form and dimensions to permit the product to be connected to, placed in, around, or against another product ("must-fit" features)
• Designs that are contrary to public policy or morality

Duration

A UK registered design lasts for an initial period of five years from the date of registration and can be renewed in five-year increments up to a maximum of 25 years.

The Infringement Test

Infringement of a registered design occurs when a person, without the consent of the registered owner, uses a design that does not produce on the informed user a different overall impression from the registered design (section 7 of the Registered Designs Act 1949).

The "informed user" is a legal construct — neither the general public nor a design expert, but a person with awareness of the existing design corpus in the relevant sector who pays a relatively high degree of attention to the design.

The degree of freedom available to the designer is also relevant. In crowded fields where many similar designs exist, even small differences may be sufficient to produce a different overall impression. In fields where the designer had considerable freedom, broader protection may apply.

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UK Unregistered Design Right

What Unregistered Design Right Protects

UK unregistered design right (UDR), created by Part III of the CDPA 1988, protects the shape or configuration (internal or external) of an article. It does not protect surface decoration — patterns, colours, or textures applied to the surface of a product are not within its scope.

This is a narrower right than a registered design. It covers three-dimensional form — the physical shape and the way components are arranged — but not the two-dimensional visual appearance that registered designs and the separate supplementary unregistered design (discussed below) protect.

No Registration Required

UDR arises automatically, like copyright. There is no application, no examination, and no certificate. This makes it easy to obtain but harder to enforce, because you must prove entitlement through evidence rather than by reference to a register.

Duration

UDR lasts for the shorter of:

• 15 years from the end of the calendar year in which the design was first recorded or an article was first made to the design, or
• 10 years from the end of the calendar year in which articles made to the design were first made available for sale or hire

In the last five years of protection, licences of right are available — meaning anyone can apply to use the design on payment of a reasonable royalty.

The Infringement Test

Infringement of UDR occurs when a person, without licence, does anything that is the exclusive right of the design right owner — primarily, reproducing the design for commercial purposes by making articles to that design or by making a design document recording the design for the purpose of enabling such articles to be made (section 226 CDPA).

Crucially, UDR requires proof of copying. If the defendant independently created a similar design without reference to yours, there is no infringement. This is the fundamental difference from registered designs.

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Supplementary Unregistered Design (SUD)

Since 1 January 2021 (post-Brexit), the UK has also had the supplementary unregistered design right, created by the Registered Designs Act 1949 as amended. This right fills the gap left by the loss of EU unregistered Community designs.

SUD protects the appearance of a product (not just shape and configuration) for three years from the date the design was first made available to the public in the UK. Like the EU right it replaced, SUD requires proof of copying for infringement.

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Preparing Your Design Right Bundle

Section 1: Court Documents

• Claim form (N1) and Particulars of Claim — clearly identifying which design right(s) are relied upon
• Defence and Counterclaim
• Reply to Defence
• Case management orders and directions
• Relevant court correspondence

The Particulars of Claim are especially important in design cases. You must identify the design with precision — which features you claim protection for, which design right(s) you rely on, and how the defendant's design infringes. Vague pleadings lead to vague bundles, and vague bundles lead to lost cases.

Section 2: The Design

This section must put the design clearly before the court. Judges decide design cases visually as much as legally, so the quality of your visual evidence matters enormously.

For registered designs:

• The design registration certificate from the UKIPO
• The representations filed at registration (these define the scope of protection)
• The specification of products for which the design is registered
• Renewal records confirming the registration is in force
• Priority documents (if applicable)

For unregistered design right:

• Photographs or technical drawings of the design from multiple angles
• Evidence of when the design was first recorded — dated design files, CAD drawings with metadata, sketches with dates
• Evidence of when articles were first made to the design — manufacturing records, invoices, purchase orders
• Evidence of when articles were first made available for sale — sales records, marketing materials, website launch dates
• Evidence of authorship — who designed it, their qualifying status (UK citizen, resident, or employee of a qualifying person)

For supplementary unregistered design:

• Evidence of the design's appearance
• Evidence that it was first made available to the public in the UK
• Evidence of the date of first disclosure (the three-year clock starts here)

Section 3: The Allegedly Infringing Article

• Clear photographs of the defendant's product from the same angles as your design evidence
• Physical samples (if the court permits — check directions)
• Purchase receipts or test purchase evidence
• Product listings, advertisements, or catalogue pages
• Evidence of when the defendant's product first appeared on the market

Section 4: Comparison Evidence

Design cases live or die on comparison. Present your design and the defendant's side by side, with clear annotations.

For registered design claims:

• Side-by-side photographs from matching angles
• Annotated comparison highlighting features that produce the same overall impression
• Reference to the design corpus — show examples of other designs in the field to help the judge assess the degree of design freedom and the significance of the similarities
• The informed user's perspective — if possible, include evidence of how the relevant market perceives the designs

For unregistered design right claims:

• Side-by-side comparison of shape and configuration only (remember, surface decoration is excluded)
• Annotated comparison of three-dimensional form
• Evidence of copying — this is essential and must go beyond visual similarity. Include:
  • Evidence the defendant had access to your design
  • Timeline evidence showing the defendant's product appeared after yours
  • Evidence of striking similarity that cannot be explained by coincidence
  • If available, evidence of a chain of access (the defendant's designer previously worked with you, attended a trade show where your product was displayed, etc.)

Section 5: Evidence of Damage and Remedies

• Lost sales attributable to the infringing product
• Price erosion — if you were forced to reduce prices
• Damage to reputation — if the infringing product is of inferior quality
• Account of profits — the defendant's financial records (obtained via disclosure)
• Evidence supporting injunctive relief — that the infringement is ongoing

Section 6: Witness Statements and Expert Evidence

• Your own witness statement covering the creation, commercial exploitation, and enforcement history of the design
• Designer's witness statement — if someone other than you created the design
• Expert evidence — in design cases, this may include a design expert who can speak to the informed user's impression, or a technical expert who can address whether features are dictated by function

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Which Court for Design Right Claims?

Most design right claims are heard in IPEC, which has specialist IP judges experienced in assessing visual similarity. The multi-track costs cap makes IPEC particularly attractive for SMEs and individual designers.

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Bundle Formatting and Compliance

Design bundles must meet the standard requirements for electronic court bundles:

• Single PDF with continuous pagination
• Bookmarked sections and documents
• Hyperlinked index
• OCR-enabled text
• No security restrictions
• A4 portrait orientation (photographs may be presented in landscape where necessary for clarity)

The visual nature of design cases means that image quality is particularly important. Low-resolution photographs that obscure detail undermine your evidence. Ensure all images are high-resolution and clearly reproduced in the PDF.

BundleCreator.co handles pagination, indexing, and bookmarking automatically, producing court-ready bundles that present your design evidence in the best possible format. For design right cases, where visual clarity is paramount, professional presentation is not a luxury — it is a necessity.

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Key Defences in Design Right Cases

Registered Designs

• Invalidity — the design was not new or did not have individual character at the date of registration
• Features excluded from protection — the features relied upon are dictated by technical function or are "must-fit" features
• Prior use — the defendant was using the design before the registration date (limited to continuation of the pre-existing use)

Unregistered Design Right

• Independent creation — the defendant created their design independently without copying
• No subsistence — the design is not original, or it falls within one of the exclusions (methods or principles of construction, "must-fit", "must-match")
• Expiry — the design right has expired
• Licence of right — in the last five years of UDR, the defendant is entitled to a licence of right on reasonable terms

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Frequently Asked Questions

Can I have both registered and unregistered design protection for the same product?

Yes. Many products are protected simultaneously by a UK registered design (covering overall appearance), UK unregistered design right (covering shape and configuration), supplementary unregistered design (covering appearance for three years), and potentially copyright (if the design qualifies as an artistic work). These rights are cumulative, and you can plead them in the alternative.

What if I did not register my design — can I still sue?

Yes, provided you have UK unregistered design right or supplementary unregistered design. However, you will need to prove that the defendant copied your design, which requires evidence of access and sufficient similarity. Registration removes the need to prove copying and is strongly recommended for commercially valuable designs.

How much does it cost to register a design in the UK?

A single UK design registration at the UKIPO costs £50 for the application plus £50 for each additional design in the same application. Renewal fees apply every five years. Compared to the cost of litigation, registration is extraordinarily inexpensive and provides significantly stronger protection.

What is the difference between design right and copyright?

Copyright protects original artistic works, including sculptures and works of artistic craftsmanship. Design right protects the shape, configuration, or appearance of products. Since the Supreme Court's decision in Response Clothing v Edinburgh Woollen Mill [2020] and legislative changes, the overlap between copyright and design right has been clarified — but in practice, many products may benefit from both forms of protection.

Can I enforce a design right against someone who unknowingly copied my design?

For registered designs, yes — the infringer's knowledge or intent is irrelevant. For unregistered design right, you must prove actual copying, but the defendant's subjective knowledge of your rights is not required. An employee who copies a design on their employer's instructions may not know they are infringing, but the infringement is established by the act of copying, not the state of mind.

How long does a design right infringement case take in IPEC?

Typically 12 to 18 months from issue to trial on the multi-track, and 4 to 9 months on the small claims track. Settlement is common after the exchange of evidence, particularly once the comparison between the designs has been fully documented.

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Stevie Hayes writes about design law, intellectual property enforcement, and court bundle preparation for BundleCreator.co — the UK's dedicated court bundle preparation platform for legal professionals and litigants in person.