What is IP Due Diligence?
What a patent diligence review checks, the findings that move price or kill deals, and how to compress the timeline without missing the ownership problems that matter most.
Definition
IP due diligence is the investigation of a company's intellectual property, principally its patents, trademarks, copyrights, trade secrets, and IP agreements, conducted before an acquisition, investment, financing, licensing deal, or public offering to confirm ownership, assess validity and coverage, and identify risks that affect the value or terms of the transaction.
Key Facts
- When: M&A, venture and growth investments, IPO preparation, debt financing secured by IP, licensing and joint ventures, and patent purchases
- Timeline: Typically 2 to 6 weeks for a mid-sized portfolio, compressed to days for the initial screen with analytics tooling
- Most common finding: Broken chain of title, usually a missing or unrecorded assignment from a founder, contractor, or acquired company
- Deal consequences: Price adjustments, escrows, specific indemnities, closing conditions, or termination
- Two directions: Buyers diligence the target's IP; sophisticated sellers run their own diligence first to fix problems before they surface
The Patent Diligence Checklist
- Ownership and chain of title: Every patent and application traces from the inventors to the target through recorded assignments; employee and contractor agreements contain present-tense assignment language; university and government rights are identified
- Status and deadlines: All maintenance fees and annuities are paid, no office action or priority deadline is about to lapse, and the docket is complete
- Coverage: Which claims actually read on the target's products and revenue, and which families are peripheral
- Validity: Exposure to prior art, problematic prosecution history, terminal disclaimers, and entity status errors
- Freedom to operate: Third-party patents that could block the target's products, and any assertions, demand letters, or litigation
- Encumbrances: Licenses granted, exclusivity commitments, standards declarations with FRAND obligations, liens, and change-of-control clauses
- Inbound rights: Licenses the target depends on, open source obligations, and whether they survive the transaction
- Other IP: Trademarks, copyrights, domain names, and trade secret protection practices
Red Flags
- A founder who left before assigning, or a contractor who built core technology without an assignment
- Patents held by a subsidiary or predecessor that was never merged into the chain
- Key patents with fewer than five years of term remaining, or facing an expensive fee decision immediately after closing
- Claims that do not cover the product that generates the revenue being valued
- An exclusive license to a third party that prevents the buyer from using the IP as planned
- Small entity fees paid after the target licensed to a large company
Compressing the Timeline
Ownership review is document work and stays manual. Coverage and validity review used to be the slow part: reading hundreds of families against a product list. Claim-to-product mapping and portfolio scoring now run in days. ArcPrime's IP valuation tooling produces the coverage map and quality scores that let counsel spend the diligence window on the families that carry the value and the problems that change the terms.
Frequently Asked Questions
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How long does IP due diligence take?
Two to six weeks for a typical mid-sized portfolio, depending on how well organized the target's records are. With analytics tooling the coverage and quality screen takes days, so most of the calendar time goes to ownership and agreement review.
What is the most common problem found in IP due diligence?
Gaps in the chain of title: a founder, employee, contractor, or predecessor company that never assigned its rights, or an assignment that was signed but never recorded. These are usually fixable before closing but can become expensive if the person has left or the company was dissolved.
What happens if due diligence finds problems?
Findings feed the deal terms. Buyers typically respond with a price reduction, an escrow or holdback, a specific indemnity, a closing condition requiring the problem to be fixed, or in serious cases, walking away.
Should due diligence cover trade secrets and software?
Yes. A full review covers trade secret protection practices, copyright ownership of software and content, open source license compliance, trademarks, and domain names. Software companies in particular often have more value in code and trade secrets than in patents.
What is sell-side IP due diligence?
A review the target runs on itself before going to market, to find and fix ownership gaps, lapsed deadlines, and record-keeping problems before a buyer does. It shortens the buyer's diligence and removes the leverage that surprise findings give the other side.
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