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ARTICLE · 24 SEPTEMBER 2026

IP Problems That Can Kill A Funding Round

Investors often discover during due diligence that startups do not fully own, control, or protect their most valuable assets. From missing assignment agreements to undisclosed open-source obligations, these common intellectual property pitfalls can delay transactions, reduce valuations, or derail funding rounds entirely. Understanding these five critical IP issues before a funding round begins can help both investors and founders reduce risk and preserve value.

United KingdomIntellectual Property

A practical guide to identifying and addressing the IP weaknesses that can undermine investor confidence and put a deal at risk.

A company may have an impressive product, growing revenues and a charismatic founder. The pitch deck might mention patent applications, proprietary technology and unique know-how. Yet deals still fall apart during due diligence.

The reason is often simple: investors discover that the company does not fully own, control or protect the assets that make it valuable. While many IP issues can be addressed if identified early, others can delay transactions, reduce valuations, or derail a funding round entirely.

Here are five of the most common IP problems investors should look for, and founders should address, before a funding round begins.

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