The most expensive IP due diligence mistake isn’t skipping the process entirely. It’s completing a review that looks thorough on paper but misses what the target actually owns. When a buyer pays a premium for a technology company’s patent portfolio, that premium depends entirely on whether those patents cover what the seller claims, whether the claims would survive a validity challenge, and whether the company actually owns them. A document review that confirms registration certificates exist answers almost none of those questions.
For Colorado businesses in Denver, Boulder, and Colorado Springs (where technology companies, life sciences startups, and defense contractors regularly change hands), IP due diligence in mergers and acquisitions rewards technical depth in the reviewer. Our attorneys at Martensen IP each hold over two decades of legal experience, combined with engineering and business credentials, which means technical assessment happens in-house rather than through a chain of consultants who don’t share a common language with the deal team.
What follows is a practical account of what a rigorous IP review actually covers, how it connects to deal structure, and where the process most commonly breaks down.
Why IP Drives M&A Value & Risk at the Same Time
In technology, life sciences, and other knowledge-driven industries, IP assets can represent the majority of enterprise value, which is why acquirers pursue these deals. It’s also why unexamined IP risk can become the largest post-closing liability. The same asset that justified the purchase price can generate infringement exposure, royalty obligations, or ownership disputes if it wasn’t properly evaluated before closing.
General legal due diligence and IP due diligence aren’t the same exercise. Confirming that a patent was granted and hasn’t expired tells you almost nothing about whether it provides meaningful competitive protection. Evaluating claim scope, assessing prior art exposure (the body of existing disclosures that can be used to challenge a patent’s validity), and determining whether trade secrets are adequately protected all require technical knowledge that goes beyond reading what was filed and registered. Independent investigation of IP registries, prosecution history (the record of communications between an applicant and the Patent Office), and licensing arrangements is necessary to verify what the target actually owns and what encumbrances come with it.
What a Thorough IP Due Diligence Review Covers
A complete review addresses every IP asset category in the target’s portfolio, not just patents. Each category has its own questions and its own failure modes.
Patents & Applications
The review covers ownership, claim scope, expiration dates, pending applications, and any validity challenges that have been filed or threatened. A patent that’s technically valid but narrow in scope may not protect the product line the buyer is acquiring. We use PatSnap tools to support patent intelligence work, including competitive landscape analysis and prior art searching, so the assessment is grounded in what the claims actually cover against the current state of the field.
Trademarks
Registration status, geographic coverage, use in commerce, and potential conflicts with third-party marks all require examination. A trademark that hasn’t been actively policed, or that was registered without confirming prior use in related categories, can create post-closing exposure in the markets the buyer intends to enter.
Copyrights
Software code, marketing materials, technical documentation, and other original works require careful review of work-for-hire documentation. If a contractor created a software module without a properly executed assignment, the company may not own what it believes it owns.
Trade Secrets
Trade secret protection measures, including NDA coverage, access controls, and documentation showing the company treated information as confidential, determine whether secrets retain legal protectability. A formula or process shared carelessly can lose trade secret status, and even a single unprotected disclosure may be enough to extinguish that protection.
Chain of Title
Chain of title (the documented legal history of ownership from invention through the present) is the most frequently uncovered problem in IP due diligence. The gaps tend to arise in predictable ways: contractor-developed IP without a written assignment agreement, employee invention assignment agreements that describe future assignments rather than using present-tense language that actually transfers the right, or IP developed before formal agreements were in place when the company was early-stage. These gaps don’t always kill deals, but they require remediation. Remediation after a purchase agreement is signed is more expensive and more uncertain than finding the problem during due diligence.
Inbound & Outbound Licensing
Inbound licenses (rights the target received from third parties) and outbound licenses (rights the target granted to others) both need careful review. Change-of-control clauses can terminate key technology licenses automatically upon closing. Exclusivity terms in outbound licenses may prevent the buyer from commercializing the acquired IP in the way the deal assumed. Assignability of inbound licenses is a threshold question in asset purchases, where IP doesn’t transfer automatically with the business.
How Deal Structure Shapes the Scope of Review
The appropriate depth of IP review is proportional to how central IP is to the transaction’s rationale. A Colorado technology company whose patents and trade secrets are the primary reason for the acquisition requires a fundamentally different scope of review than a business where IP is incidental to physical assets or customer relationships.
Transaction structure also shapes scope in a specific way. In an asset purchase, the buyer selects which assets transfer, meaning IP must be individually identified and confirmed as properly assignable. In a stock purchase, the buyer acquires the entire legal entity, including all IP-related liabilities (disclosed or not). That asymmetry makes thorough review more consequential in stock purchases, because findings that surface after closing become the buyer’s problem without recourse unless the representations and warranties were carefully drafted.
For technology acquisitions, open-source software compliance has become a material risk category that older due diligence frameworks often underweight. Many companies incorporate open-source components into commercial software without fully tracking the license terms. Copyleft licenses, like the GNU General Public License, impose obligations requiring that derivative works be distributed under the same open-source terms, which can directly conflict with a buyer’s plan to sell the acquired software as a proprietary product. Identifying undisclosed open-source components before closing is now a standard part of technology company IP review.
From Findings to Deal Terms: How IP Due Diligence Shapes the Transaction
IP due diligence isn’t just an information-gathering exercise. The findings feed directly into deal structure and contract terms. Weak or contested IP may justify a purchase price reduction. Identified risks that can’t be remedied before closing may warrant an escrow holdback, where a portion of the purchase price is held pending resolution of the outstanding issue.
Representations and warranties negotiated around IP ownership, non-infringement, and the absence of pending litigation transfer identified risks contractually to the seller. If an undisclosed ownership problem surfaces post-closing, properly drafted representations give the buyer a basis for indemnification. Without them, the buyer absorbs the loss.
Not every IP problem uncovered during due diligence is a deal-breaker. Some risks can be addressed through targeted licensing arrangements, IP representations and warranties insurance, or post-closing cure obligations structured into the purchase agreement. Knowing which problems fall into which category requires the kind of substantive assessment that separates a technical IP review from a checklist exercise.
Why Technical Depth in the Reviewer Changes the Outcome
Determining whether a patent’s claims are valid, enforceable, and actually protective of the product or process at issue requires understanding the underlying technology. An attorney who hasn’t worked through the engineering can read a patent, but assessing whether the claims are likely to survive an inter partes review (a proceeding before the Patent Trial and Appeal Board that allows third parties to challenge patent validity) or whether a workaround exists requires a different kind of analysis.
Our attorneys each hold over two decades of legal experience, with engineering degrees and business credentials that make in-house technical assessment possible. When the legal reviewer and the technical reviewer are the same person, the analysis is faster, less expensive, and less likely to miss the nuance of the claim language. Founder Michael Martensen’s background in military program management, business administration, and engineering directly informs how we approach due diligence for companies operating in defense, aerospace, software, and manufacturing. We work regularly with companies in proceedings before the U.S. District Court for the District of Colorado and the U.S. Patent and Trademark Office, experience that shapes how we read portfolio risk for transactions where litigation exposure or prosecution strategy is a factor.
Preparing for IP Due Diligence as a Seller
Most discussion of IP due diligence focuses on the buyer’s perspective. Sellers who prepare their portfolios before a deal process begins, though, are in a meaningfully stronger position than those who wait for a buyer’s request list to surface problems.
A freedom-to-operate analysis (which evaluates whether a company’s products or processes risk infringing third-party rights) conducted before going to market can identify and address risks that would otherwise emerge as buyer leverage in price negotiations. Reviewing invention assignment agreements, cleaning up chain-of-title gaps, and organizing licensing documentation ahead of a deal reduces friction during buyer due diligence and signals to acquirers that the portfolio has already been internally vetted.
For Colorado founders and business owners considering an exit, the time to address IP portfolio hygiene is before the letter of intent is signed, not after.
IP due diligence in mergers and acquisitions is only as reliable as the reviewer’s ability to assess what the assets actually are, what they’re worth, and what risks they carry. Martensen IP works with buyers, sellers, and investors across Denver, Boulder, Colorado Springs, and throughout Colorado who need that technically grounded assessment before a transaction closes. Reach us at (719) 417-8709 to talk through what a review would involve for your deal.