PatentBasePatentBase is an AI-powered patent search platform built for engineers and IP professionals that helps you find the closest prior art using state-of-the-art large language models. It provides AI-based query generation, semantic re-ranking, and AI-based claim analysis, and includes an Agentic AI mode that orchestrates these steps to deliver the top 10 most relevant patent results automatically. It uses a freemium pricing model with a free plan and a Pro tier around $20/month, with upcoming premium offerings for firms, and is developed by TeitoLabs LLC.