The Clause Nobody Reads Until It Is Worth Everything
Founders spend weeks arguing about equity splits and vesting cliffs, then approve the intellectual property section in one line because it reads like boilerplate. In a hardware or deep-tech company that section is often worth more than the equity table beside it. The company's entire value is designs, firmware, test data, and filings, and the only thing establishing that the company owns them rather than three individuals is a paragraph most people skim.
The failure mode is delayed. Nothing goes wrong while everyone is friendly. The problem surfaces during a funding round, an acquisition, or a departure, which is precisely when you have the least leverage and the least time.
Three Ways It Breaks
A co-founder leaves and takes the invention. Two engineers build a device together. One does the mechanism, one does the firmware. Eighteen months in, the firmware founder leaves after a disagreement. Nothing in writing assigned his work to the company. He is a joint author of the code and, if he contributed to the claimed subject matter, potentially a co-inventor on the pending patent. Under US law each co-owner can license independently without accounting to the others, a dynamic explained in two inventors, one patent. The company now competes against a licensee of its own core technology.
The prior employer claims it. A founder developed the concept while employed elsewhere, using evenings and a personal laptop. His employment agreement had a broad invention assignment clause covering anything related to the employer's field. State law limits how far those clauses reach, and the boundaries are covered in does your employer own your invention, but the founders agreement never asked the question, so nobody checked and nobody disclosed. The claim arrives after the product ships.
A contractor owns a module. The team hired a freelance firmware developer for a three-month sprint, paid by invoice, no assignment clause. Payment does not transfer copyright or patent rights in the US by default. The rules are in who owns the IP a contractor creates, and the company discovers the gap when an acquirer's counsel asks for the assignment chain.
What the Clause Has to Say
A present assignment, not a promise. The language must read that each founder hereby assigns, in the present tense, all right, title, and interest in inventions, works of authorship, designs, data, and know-how created in connection with the company. Wording like agrees to assign creates only an obligation to sign something later, and if the founder is gone or hostile, that obligation is a lawsuit rather than a title document. Courts have turned on exactly this distinction.
A defined scope. Cover inventions conceived or reduced to practice during the relationship that relate to the company's business or were made using company resources. Broader than that invites unenforceability; narrower leaves gaps.
A schedule of pre-existing IP. Each founder lists what they owned before joining and what stays theirs. Anything not listed is presumed assigned. This single exhibit prevents the most common late-stage dispute, and it forces the awkward conversation early, when it is cheap. If a founder brings in prior work the company needs, grant the company a perpetual, irrevocable, royalty-free license to it in the same document.
A duty to disclose. Founders must promptly disclose inventions to the company. Without it, a founder can quietly develop an adjacent improvement and argue later that it fell outside the company's business.
Cooperation after departure. Patent offices need inventor signatures for years after the fact, so a former founder must remain obligated to sign declarations, assignments, and foreign formalities. Without that clause, one departed founder can stall an entire foreign family.
Confidentiality. Perpetual for trade secrets, with a clear statement that leaving does not release the obligation.
Interaction with vesting. Assignment must not be conditioned on vesting or on continued service. A founder who leaves before the cliff still assigned everything they built. Keep the two mechanisms separate even though they appear in the same document, and see founder vesting schedules for how the equity side should be structured.
The Test That Actually Grades Your Clause
Investor counsel will ask for a specific set of documents: signed assignments from every founder, employee, and contractor who touched the product; the recorded assignment chain at the USPTO for every filing; a list of open-source licenses in the firmware with their obligations; confirmation that no founder's prior employer has a claim; and evidence that inventorship on each filing is correct.
Gaps rarely kill a deal. They reprice it or delay it. A missing contractor assignment found in diligence means chasing a signature from someone who now knows exactly how badly you need it, and the price rises accordingly. The full inventory of what gets examined is in investor due diligence, and the IP section is where hardware companies lose the most time.
When to Sign It
Before any real work happens, which in practice means before the first CAD file, the first commit, and certainly before the first filing. The conversation gets harder every month: once there is a working prototype and a visible market, each founder's assessment of their own contribution has hardened, and asking for a signature reads as distrust rather than housekeeping.
If you are past that point and the paperwork is missing, fix it now rather than at term sheet. Retroactive assignments are enforceable, and the cost of getting them while everyone is still aligned is a fraction of the cost later. Fold the IP terms into the broader agreement described in what co-founders must put in writing, and treat it as one section of a real document rather than a standalone memo.
How It Fits the Wider Protection Plan
Clean internal ownership is the precondition for everything else, not a substitute for it. Once the company clearly owns the work, the decisions about what to patent, what to hold as trade secret, and what to register as trademark can proceed on their merits. That sequencing is the subject of building an IP protection strategy. Filing a patent application owned by an entity whose title is uncertain simply moves the defect downstream into an asset that now looks valuable enough to fight over.
Keep it current too: every new hire, intern, advisor, and contract shop signs the same assignment language before their first day.
Map Who Contributed What Before It Gets Complicated
Ownership problems are usually documentation problems about work that happened years earlier across several people and vendors. Projects House works with founding teams to trace contributions across the development history and identify the assignments that are actually missing. Tell us how your team and vendors are structured through our contact form.