Moldmakers: who owns mold designs and flow simulation files?

Why the tooling contract decides who owns mold designs#

The tooling contract decides who owns mold designs because the physical mold and the design data behind it are different kinds of property. A customer that pays for a mold usually takes title to the tool itself, but the 3D tool model, drawings, simulation reports and design standards are intellectual property that follow the written terms.

Where the terms say nothing, ownership starts with whoever created the work. Under the copyright statute, when work is made for hire, the employer is considered the author and owns the rights unless a signed written instrument says otherwise, so designs drawn by a moldmaker's own designers generally start with the moldmaker. Copyright protects the drawings and models as expression, not the functional ideas in a mold, so contract terms and trade secret protection often matter more than copyright in practice.

Commissioned work is narrower. Copyright Office guidance explains that a specially commissioned work is a work made for hire only in certain statutory categories and only with a signed written agreement. Outside those categories, a customer that wants ownership of a mold design typically needs a written assignment, which is why so many tooling purchase orders contain one.

Who usually owns each mold-related asset?#

Each mold-related asset has a usual starting point and a clause that most often changes it. Use the table as a map for reading your own agreements, not as a conclusion about any one of them.

Clauses to look for in purchase orders and tooling agreements#

The clauses to look for are spread across the quote, the customer's purchase order terms, any tooling agreement and the supply agreement with the molder if that is a different company. Customer standard terms are often accepted by default when a PO is acknowledged, so read them even if nobody negotiated.

• 1Ownership of tooling: what transfers on payment, and whether it includes designs and documentation.
• 2IP assignment: whether all designs, drawings and data developed under the order pass to the customer.
• 3Deliverables: whether native CAD, neutral files or only PDFs must be handed over at completion.
• 4License-back: whether the moldmaker may keep using standard components and methods.
• 5Confidentiality: how long the customer's part design and the mold design must be protected.
• 6Tool transfer: which records must go with the mold if it moves to another molder.
• 7Data and AI use: whether files may be uploaded to outside tools or used to train models.

Flow simulation files need their own check#

Flow simulation files need their own check because they combine three parties' interests: the customer's part geometry, the moldmaker's analysis choices and the software vendor's license terms. A report sent to the customer during design review may be a deliverable, while the underlying project files stay with the moldmaker.

Software terms matter too. Autodesk, which makes Moldflow, publishes General Terms with a section saying customers retain ownership of the files, designs and data they create and upload, though enterprise agreements may differ. AEC Magazine reported, however, that a broad clause in Autodesk's terms and acceptable use policy, read literally, would restrict training AI models on output from an Autodesk application. Read the current terms of whatever simulation software you use before licensing any output.

Because simulation results embed the customer's geometry, they are usually the hardest moldmaker records to license. Results stripped of geometry, or summary findings without the part, may be possible where the customer's terms allow.

What if the contract says nothing about design ownership?#

When the contract says nothing, the moldmaker may have a claim to its mold design, but relying on silence is risky. Where ownership is unclear, moldmakers may assume they keep the tool design while customers assume they bought it along with the steel. Disputes tend to surface when a mold transfers or a relationship ends.

Resolve ambiguity in writing before it matters. A short letter agreement confirming who owns the mold design, what the customer receives and what the moldmaker keeps, such as its standards library, protects both sides and makes any later data review straightforward.

Protect what you intend to keep. A standards library or design method that the moldmaker treats as a trade secret needs reasonable protective measures, and Justice Department guidance gives examples such as limiting access on a need-to-know basis, requiring confidentiality agreements and telling employees the information is confidential.

Illustrative: a moldmaker sorts its design archive#

Illustrative: a fictional moldmaker builds multi-cavity molds for consumer products and industrial customers. Its PDM system holds years of mold designs, a library of standard plates, cooling layouts and ejection designs, simulation reports and internal design review notes.

The owner wants to know whether any of it could be licensed. Counsel sorts the archive by the governing terms. Designs built under purchase orders with full IP assignment are excluded. Simulation files are excluded because each contains customer geometry. What remains is the standards library, internal design review notes and DFM checklists, with customer names and part references removed.

The resulting package is smaller than the archive but has clean rights. The moldmaker also updates its quote terms to state that its standards library and general methods remain its own.

How SourceX handles tooling archives#

SourceX handles tooling archives mainly at the Rights stage of the SourceX five-step transaction, which runs Supply, Rights, Preparation, Approval and Delivery. Anything customer-owned or assigned to a customer is left out, and export-controlled work is never included.

For what remains, the SourceX Evidence Packet ties each record to its source and to the moldmaker's right to license it, states the permitted use, notes how personal details were handled and carries the moldmaker's release authorization. The moldmaker keeps ownership and approves the final scope before delivery.