Hi HN,
I built PatentFig.ai to solve a frustrating problem I kept running into: patent drawings are technically demanding, expensive to outsource, and incredibly time-consuming to do manually — yet they're mandatory for virtually every patent application.
Traditional options are either hiring a patent draftsman ($50–200/figure) or wrestling with CAD software for hours. Neither is great if you're an independent inventor or a startup trying to move fast.
PatentFig.ai lets you generate patent-compliant technical drawings in minutes. You describe your invention or upload a rough sketch, and the tool produces figures that follow USPTO and EPO formatting requirements — proper line weights, reference numerals, black-and-white rendering, and standardized views.
A few things I focused on:Compliance first: the output is designed to pass examiner review, not just "look technical"
Multiple views (perspective, cross-section, exploded) from a single description
SVG output so attorneys and agents can fine-tune details before filing
Still early — currently handling mechanical and electrical inventions best. Software/UI patents and biotech figures are on the roadmap.
Would love feedback from anyone who's dealt with the patent drawing process, especially patent agents or attorneys who know the pain points better than I do.
https://patentfig.ai