GLAZE, FORM, AND WHO OWNS IT.
A ceramicist's original glaze recipe can be protected as a trade secret if it is kept confidential and never disclosed, since the exact chemical formula is not something copyright protects. The physical form and surface decoration of a piece is protected by copyright as a work of applied art, and in the EU and UK can also gain design right protection for its distinctive shape. Because ceramics are physical, one off or small batch objects, the record of who made a piece and when it sold matters as much for provenance and resale value as any formal registration.
Signature forms and glaze recipes protected as far as the law allows, with a record for every piece you sell.
LAST REVIEWED
THE SITUATION
A ceramicist develops a signature glaze after years of testing, and a distinctive form that becomes recognisable as their work. Both are valuable, but they are protected in completely different ways, and most ceramicists never distinguish between the two when a competitor's work starts looking suspiciously familiar.
Selling through galleries, online shops and craft fairs also means the object leaves the maker's hands with little or no paper trail. When a piece resurfaces years later at auction, or when a buyer claims a different maker made it, there is often no record connecting the object back to the person who actually threw it.
WHAT BREAKS.
GLAZE FORMULA LEAKED
A studio assistant or apprentice leaving with a glaze recipe developed over years of testing, with no confidentiality agreement in place to treat it as the trade secret it functionally is.
SIGNATURE FORM COPIED
A distinctive vessel shape or surface texture copied closely by another maker, raising a copyright claim in the applied art even though the specific glaze chemistry differs.
NO PROVENANCE RECORD
A piece sold without any record of maker, date or edition, making it impossible to prove authenticity or origin if it resurfaces at resale or auction later.
GALLERY MISATTRIBUTION
A gallery or shop mislabelling or misattributing a piece to a different, often more famous, maker, diluting the actual maker's reputation and market value.
COMMISSION SCOPE DISPUTES
A commissioned piece where the client assumes they can request unlimited revisions or reproductions, with no written scope defining what the fee actually covered.
WHAT YOU CAN OWN.
COPYRIGHT
The physical form and surface decoration of a ceramic piece is protected as a work of applied art, independent of the glaze chemistry used.
TRADEMARK
Not usually relevant to an individual piece, though a studio name or maker's mark used consistently as a brand identifier can be trademarked.
DESIGN RIGHT
In the EU and UK, a distinctive vessel shape or surface pattern can gain unregistered or registered design right protection alongside copyright.
PATENT
Not typically applicable, though a genuinely novel firing or glazing technique with a functional, non aesthetic benefit could rarely qualify.
TRADE SECRET
A glaze recipe, being an undisclosed formula, is well suited to trade secret protection as long as it is kept genuinely confidential.
LIKENESS
Not relevant unless a piece incorporates a real person's image or features.
FOUR STEPS.
DROP
Upload photos of the piece, notes on the form's development and any glaze recipe documentation you want kept confidential.
EXAMINE
Deed separates what should be registered as applied art from what should stay protected as a confidential trade secret.
EXECUTE
A signed confidentiality agreement for staff and apprentices, plus a provenance record minted for each piece or edition sold.
DEFEND
A public, verifiable record proving maker, date and authenticity if a piece is copied, misattributed or resold.
KEY FACTS
- 01A glaze recipe is not protected by copyright but can be protected as a trade secret if kept genuinely confidential.
- 02A ceramic form's physical shape and surface decoration is protected by copyright as a work of applied art.
- 03EU and UK design right can separately protect a distinctive vessel shape, running alongside copyright protection.
- 04A provenance record for each sold piece is what protects a maker's reputation and a buyer's resale value years later.
QUESTIONS
+Can I protect my glaze recipe legally?
Yes, as a trade secret, but only if you keep it confidential. Unlike copyright, trade secret protection ends the moment the recipe is disclosed publicly.
+Is the shape of my pots protected by copyright?
Yes. The physical form and decoration of a ceramic piece is protected as a work of applied art, separate from any glaze formula used on it.
+How do I prove I made a specific piece years later?
With a dated record made at the time of creation or sale, ideally including photos and a signed provenance document tied to that specific piece.
+Can an apprentice take my techniques when they leave?
General skill they developed is theirs to take. A specific confidential recipe or process, if you protected it as a trade secret with a signed agreement, is not theirs to disclose or use commercially.
+What should a commission agreement for a ceramic piece include?
The scope of the piece, number of revisions, whether the client can request reproductions, and who owns the rights to photograph or reproduce the design afterward.