This Swedish startup doesn’t want to give patent lawyers AI tools. It wants to replace them.

A Swedish startup wants to do to patent attorneys what Harvey and Legora are doing to corporate lawyers, except it is not trying to give them better tools. It wants to replace them.

Lightbringer has raised $10m (€8.6m) in a Series A to take its self-styled ‘AI-native patent firm’ into the United States, the world’s largest and most fiercely protected market for intellectual property.

The round was co-led by London’s 6 Degrees Capital and Amsterdam’s Newion, with existing backers Luminar Ventures and Alliance VC. The company says revenue grew 300 per cent year-on-year in the second quarter.

Most AI in the patent world has aimed at making lawyers faster, trimming admin and billable hours at the edges. Lightbringer’s pitch is blunter: it is built to replace patent firms outright, part of a wave of startups challenging the legal industry’s resistance to change.

Its ‘Service as Software’ model bundles IP strategy, filing and portfolio management into one fixed-price subscription. Founded in 2023, it pairs agentic AI with human patent lawyers for oversight, and claims to cut a typical filing from two months to a couple of days, at roughly half the cost.

The wedge is a real gap. There are not enough patent lawyers who deeply understand fields such as quantum sensing or novel materials, and AI, Lightbringer argues, can build that niche expertise fast. It says it has handled patents for more than 200 deep-tech companies across 17 countries since 2024.

America is where the money is, an IP legal-services market worth around €14.8bn, and where the barriers are highest. The US patent bar is tightly regulated, and the rules on who may practise before the patent office will test how far an ‘AI-native firm’ can really go before a human attorney has to sign.

It is also a crowded, well-capitalised fight. AI-first law firms are multiplying, and legal-AI platforms like Legora have raised hundreds of millions for their own US pushes, making Lightbringer’s $10m look modest, even allowing for the different niche it targets.

And speed is not the same as strength. A patent filed in days still has to survive years of examination and, eventually, litigation, and AI is already straining the edges of patent law itself. The real test is not how fast Lightbringer files, but how many of its patents hold.

Cristian Dina is the CRO at The Next Web. He has interviewed 300+ industry leaders and authored the book King of Networking, establishing hi (show all) Cristian Dina is the CRO at The Next Web. He has interviewed 300+ industry leaders and authored the book King of Networking,