A few years ago, many startups treated patents as something to deal with after product-market fit. Get the product working, find your customers, then worry about IP.
That mindset is changing fast.
Research by the EPO and EUIPO, based on data from nearly 300,000 European startups, found that startups applying for patents before their seed or early growth stages are up to 6.4 times more likely to secure funding than those without any IP rights. When patents and trademarks are combined, that figure rises to 10.2 times more likely.
Investors are paying attention to IP earlier than ever. And founders are responding accordingly.
What Is Driving the Earlier Filing Trend
Three forces are converging to push patent activity earlier in the startup lifecycle.
Investors are treating IP as a due diligence requirement, not an afterthought.
Venture capital firms backing hardware, deep tech, AI, and biotech now routinely review patent status before extending term sheets. The quality of what investors find directly affects both the likelihood of investment and the pre-money valuation. Startups that arrive at Series A without any IP filing are increasingly at a disadvantage.
In fast-moving technology sectors, the filing window closes quickly.
WIPO recorded 275,900 international patent applications in 2025, with AI and computer technology among the fastest-growing areas. In those sectors, waiting too long does not just mean missing the investor signal. It can mean losing the ability to file at all, if a competitor reaches the patent office first or prior art accumulates around your approach. The EPO operates with no grace period: any public disclosure before the filing date can be used as prior art against the application.
Founders are more IP-aware than they used to be.
Accelerators, startup ecosystems, and the broader shift toward defensibility-focused fundraising have raised IP literacy among early-stage founders. The era of “growth at all costs” has given way to a much sharper focus on unit economics and defensible assets. Patents are increasingly seen as part of that picture from day one, not a task for later.
How Patents Affect Startup Valuations
The data is consistent across multiple European sources. Patents help in three specific ways.
- They signal defensibility to investors. Patent filings show that the underlying technology is novel, that the team has thought about protection, and that competitors face real barriers. The EPO/EUIPO research notes that patent filings are effective indicators of the technical capabilities of a team, and that investors actively factor this into funding decisions.
- They create transferable assets. Patents survive beyond bankruptcy and can be licensed, sold, or used as collateral. The EPO/EUIPO study found a median seed funding of over €900K for startups using both patents and trademarks, compared to around €260K for those without.
- They improve exit outcomes. The same research found that an IPO or acquisition is more than twice as likely for startups with patents or trademarks, and more than three times as likely for those with both.
The broader pattern holds at company level too. A January 2025 EPO/EUIPO study on firm performance found that IP-owning SMEs generate 44% higher revenue per employee than counterparts without IP, rising to 51% when patents, trademarks, and designs are combined. And a February 2026 EPO/EUIPO report on IP and innovation in European sectors found that 88% of startup investment funding in Europe went to companies in IP-driven industries.
The direction of the evidence is consistent. IP ownership correlates with better funding outcomes, stronger performance, and higher exit multiples.
Why it matters: Filing is no longer just a legal formality. It is a signal that sophisticated investors have learned to read, and the startups that send it early negotiate from a stronger position.
The Risks of Filing Too Early (and How to Avoid Them)
Earlier filing is not without risk. The pressure to move quickly can lead to problems that surface at the worst possible moment.
- Weak claims from premature filing. As noted in a European patent strategy analysis published on Lexology, the key strategic question for European startups is not whether to file, but how to manage the timing and scope trade-off. Filing before the invention is properly defined can result in claims too narrow to be commercially meaningful, or too vague to hold up under EPO examination. Weak filings can create the same red flags as no filings at all during investor diligence.
- Underestimating prosecution and maintenance costs. Filing is only the beginning. EPO search fees, examination fees, excess claims fees, and annual renewal fees add up significantly over the life of an application. The EPO IP Helpdesk offers reduced fees for micro-entities, and IamIP’s own guide to patent lifetimes and costs covers what to budget for. Startups that file speculatively without a plan for follow-through often end up with lapsed applications, which signal carelessness to investors running diligence.
- Missing ownership basics. A surprisingly common problem in Europe: IP rights do not automatically belong to the startup. Under most European employment laws, inventions made by employees in the course of their duties belong to the employer, but this needs to be properly documented. Agreements with co-founders, contractors, and academic collaborators require particular care, especially for university spin-offs. Resolving ownership at the time of creation, not during a funding round, is the right approach. The EPO’s SME case studies consistently flag this as one of the most avoidable early-stage mistakes.
The Lightyear case, a Dutch solar EV startup that went through bankruptcy but whose patent portfolio survived intact, illustrates the other side of this. Strong IP outlasted the company itself and enabled a full strategic pivot into a new market. The patents were the asset that remained when everything else failed.
Why it matters: The goal is not to file as early as possible. It is to build a clean, defensible portfolio that can withstand scrutiny when it matters most.
What Early-Stage IP Strategy Looks Like in Practice
Getting this right does not require a large IP team or a six-figure legal budget from day one.
It does require building a few habits early.
- Capture invention disclosures systematically. Ideas that are never written down cannot be protected. Engineers and founders should record new inventions as they happen, not wait until an attorney asks for them. Many valuable disclosures get lost in the gap between the idea and the formal filing process.
- Understand the competitive landscape before filing. Knowing what competitors have already filed shapes which claims are worth pursuing and where the strategic gaps are. A prior art check before engaging external counsel saves time and cost at a stage where both are scarce.
- Prioritize claims that protect commercial value, not just technical novelty. The question is not only whether something is new, but whether a patent on it would actually matter for the business. Claims should protect the core product differentiation, the things competitors would need to copy to offer a comparable product.
- Build IP into the product development process, not just the legal one. IP decisions made after the product is built are harder and more expensive than those made alongside it. The most effective early-stage programs treat invention capture as part of the development workflow.
How IamIP Supports Early-Stage IP Programs
IamIP’s Idea Database is built for exactly this stage.
It centralizes the full process from idea submission through to the filing decision, in one shared workspace. Teams can assign roles, assess ideas collaboratively, and track every step without losing context. For startups managing IP without a dedicated function, it replaces the spreadsheets and email chains where disclosures typically get lost.
The AI Search Suite means founders and engineers can run meaningful prior art checks themselves before engaging external counsel. Natural Language Prompt Search and Similarity Search make it possible to explore 131M+ patents across 105+ countries without specialist training, saving both time and cost at the stage where both are scarce.
Competitive monitoring lets startups track what others are filing in their technology space, giving them strategic context before committing resources to prosecution. Knowing where competitors are filing, and where they are not, is exactly the kind of intelligence that shapes a defensible early-stage IP strategy.
For lean IP teams, or founders without a dedicated IP function at all, this gives the whole organization access to the intelligence it needs to make better decisions earlier.
Conclusion: Filing Earlier Is Becoming a Competitive Necessity
The startups that treat IP as a day-one discipline are the ones that negotiate from strength at Series A, and exit at better multiples.
What is changing now is not the data. That case has been made clearly by EPO and EUIPO research. What is changing is that more founders understand it, and more investors are checking for it.
Building those habits from the start is no longer a nice-to-have. It is increasingly the baseline expectation.
Explore IamIP’s solutions for startups and SMBs or book a demo to see how early-stage teams are building IP programs that scale.
