A JDM, or joint development manufacturer, builds a product whose design both sides created together. The defining condition is that you bring engineers too. Your team and the vendor’s team co-develop the design, which separates a JDM arrangement from an ODM (the vendor’s existing design, adapted for you) and from hiring a development firm (the vendor’s engineers doing the work you cannot).
Thank you for reading this post, don't forget to subscribe!That single condition decides who owns the result, and the default rules are stranger than most founders expect.
What JDM stands for
JDM stands for joint development manufacturer, sometimes written as joint design manufacturer or joint development manufacturing. No standards body, government agency or professional association defines the term. It is industry vocabulary, and it is used loosely.
The earliest published description we can find in trade press is a February 2003 electronics assembly article, which stated flatly that a JDM helps design products for OEM customers. That is a 23-year-old sentence, written as the setup for one consultant’s commentary rather than as a considered definition, and nothing more rigorous has replaced it. Treat any vendor’s more specific definition as that vendor’s own.
What is precise, and what actually matters, is the legal machinery underneath co-developed work. That is where the rest of this article sits.
The defining condition: you bring engineers too
In practice the label is used when both parties staff the project. Three arrangements are easy to confuse:
| Model | Whose engineers | Design origin |
|---|---|---|
| ODM | The vendor’s | The vendor’s existing base design |
| Development firm | The vendor’s | Your requirement, engineered from scratch |
| JDM | Both | Co-created during the project |
A real joint development agreement filed with the SEC shows the mechanism plainly. In a 2009 medical robotics collaboration, ownership of newly created intellectual property was set to “vest in the Party or its Associated Companies whose employee(s) made the Creation,” with anything made jointly held so that each joint owner has an equal, undivided interest, and the work run through a steering committee and working groups staffed by both sides. Ownership followed whose people did what. That is only a meaningful question when both sides have people.
How work is split in a JDM engagement
Who owns which subsystem
Typical splits put the client on the parts that carry its differentiation and the vendor on the parts it already knows how to build:
- Client engineers own the algorithm, the application firmware, or the sensing approach that makes the product distinctive.
- Vendor engineers own the power supply, the mechanical platform, manufacturability and test.
- Both sides touch the boundary, which is where the ownership question gets hard.
Who owns the resulting IP
US law supplies defaults, and they differ by the type of right. This is factual background rather than legal advice, and the terms in your contract override the defaults.
For patents, 35 U.S.C. 262 is the provision to understand. In the absence of any agreement to the contrary, each joint owner “may make, use, offer to sell, or sell the patented invention within the United States, or import the patented invention into the United States, without the consent of and without accounting to the other owners.” Your co-owner can commercialize the whole invention and owes you nothing.
Two further points sharpen that. Under 35 U.S.C. 116(a), inventors may apply for a patent jointly even though they “did not physically work together or at the same time,” did not each “make the same type or amount of contribution,” and did not each contribute “to the subject matter of every claim of the patent.” Federal Circuit case law builds on that: a modest contribution to a single claim can make someone a joint inventor of the whole patent. The same line of cases holds that all co-owners must ordinarily join an infringement suit, so a co-owner who declines to join can leave the patent effectively unenforceable.
Copyright runs the other way. Joint owners of a copyright are generally treated as tenants in common, each able to license the work but subject to a duty of accounting to the other owners for profits. That rule comes from legislative history and case law rather than the statutory text. Trade secrets have no default rule at all: the federal statute is silent on joint ownership, so the contract is the only thing deciding it.
The practical consequence is that the same project can produce three different outcomes on the same day, depending on whether a given asset is a patent, a copyright or a secret. Have an attorney draft the ownership terms before engineering begins.
JDM compared with ODM
The difference is where the design came from and what you can change.
- ODM: the vendor’s base design already exists and is licensed to several brands. You adapt within its limits, quickly and cheaply. See what an ODM is.
- JDM: the design is created for this project by both sides. Slower, more expensive, and it can produce something genuinely differentiated.
- Ownership: with an ODM you generally license. With a JDM you generally co-own, which is not the same as owning.
JDM compared with hiring a development firm
Both routes produce a new design. The difference is who does the engineering and, consequently, who can claim inventorship.
Engaging a development firm with a clean assignment clause is the simpler ownership structure: one party creates, the other takes title in writing. A joint arrangement starts from shared inventorship and has to be contracted back to something workable. For a founder with no engineering team, the joint route is not available in any meaningful sense. See what a product development firm is for how the single-vendor version works.
Who the model actually suits
- Established companies with an in-house engineering function that lacks one specific capability, such as high-volume manufacturing or RF design.
- Programs where the client’s core technology cannot be handed over in full, so co-development is the only way to keep it partly in-house.
- Buyers with legal resources to negotiate ownership properly before work starts.
Why most first-time inventors are not a fit
The model assumes a capability you probably do not have yet.
- Without your own engineers, there is no joint development. There is just development, and you are buying it.
- Co-ownership sounds equitable and behaves asymmetrically. A partner with manufacturing capacity can exploit a jointly owned patent immediately. You may not be able to.
- Negotiating a joint agreement costs real legal time before any engineering starts.
If you are earlier than that, start with the types of product development companies and work out which category you actually need.
Frequently asked questions
Is a JDM the same as a joint venture?
No. A joint venture is a separate business entity with shared ownership. A JDM arrangement is a contract between two existing companies to develop and build a product together, with no new entity created.
Who owns the patent if my engineer and theirs invent something together?
Absent an agreement, both parties own it jointly, and under 35 U.S.C. 262 each can exploit it without the other’s consent and without paying the other anything. That default is usually not what either side intended, which is why the agreement should settle it in advance.
Can I use a JDM arrangement without my own engineers?
Not meaningfully. The model is defined by both sides contributing engineering. Without a team of your own you are hiring a development firm or an ODM, whatever the arrangement is called in the proposal.
Is co-ownership better than licensing?
It depends entirely on what you can do with the rights. Co-ownership gives you freedom to practice the invention, and it gives your partner the same freedom. If your partner can manufacture at volume and you cannot, that symmetry may favor them.
What should the agreement cover before engineering starts?
Which pre-existing technology each side brings, who owns what the project creates, what happens to jointly created rights, whether either side may license to third parties, and what happens if the project ends early. These are contract questions for a qualified attorney.
Where Inventornest fits
Inventornest is not a JDM. We work as a concept-to-production partner for clients who do not have an internal engineering team, which means our engineers do the work and the resulting design is assigned to you rather than co-owned. That removes the joint-inventorship question rather than negotiating around it.
Companies that do have engineers, and want to keep part of the design in-house, are a genuine fit for a joint arrangement, and we will tell you when that describes you better than what we offer.
You can review the scope of our OEM services, or book a free consultation to work out which structure suits your product and your team.