Fearn Raises $5.5M to Build AI Patent Firm
Fearn raised $5.5M to launch as an AI-native patent prosecution firm, offering flat-fee services and a refund guarantee.
The big picture: Fearn, a San Francisco startup, has launched as an AI-native patent prosecution firm, backed by $5.5 million in funding. The company aims to disrupt the traditional patent application process by integrating AI into its workflow and offering flat-fee services. Fearn employs its own former Big Law patent experts and runs its drafting through a proprietary system called FearnOS.
Why it matters:
- Cost reduction: Conventional patent applications are expensive, typically costing $18,000 to $40,000. Fearn offers flat fees of $2,500 for a provisional filing and $9,000 for a non-provisional, including USPTO fees.
- Efficiency gains: Fearn’s AI-driven system, FearnOS, can generate a review-ready patent draft in as little as 24 minutes, with provisional applications filed within three business days.
- Risk alignment: The firm puts its fee at risk, refunding the $9,000 non-provisional application fee if no claims are allowed, aligning its incentives with client success.
How it works:
- AI-native model: Unlike companies selling software to lawyers, Fearn operates as a full-service law firm, building its entire business model around its AI technology from day one.
- Proprietary software: FearnOS treats a patent as a graph, mapping claims to figures and technical material, which accelerates the drafting process significantly.
- Human oversight: Despite AI integration, every application undergoes review by a human patent expert, ensuring quality and compliance before filing.
The catch: Fearn enters a market with established players like Solve Intelligence and Patlytics, which have raised substantial capital by selling AI tools to existing law firms. Fearn’s unique bet on being the ‘legal team’ itself, coupled with its fixed-fee and guarantee-backed model, will need to prove its scalability and effectiveness against actual patent examiners as it handles a larger volume of filings.
Key Facts
- Company: Fearn
- Amount: $5.5M
- Investors: Kindred Ventures (lead), a16z Speedrun, Designer Fund, Essence VC
- Founders: Han Kim, Angela Gao
- Sector: Patent Prosecution AI
- Headquarters: San Francisco