Patent Diagram Generator

Generates patent-style technical diagrams using Graphviz, handling flowcharts for method claims and block diagrams for system claims with proper USPTO-style reference numbering (10, 20, 30, etc.). You feed it step definitions or component blocks and it spits out SVG, PNG, or PDF files. The nice bit is the automatic reference numbering and built-in patent formatting conventions, so you're not manually labeling everything. Supports multiple layout engines (dot, neato, circo) and includes templates for common patterns. Requires Graphviz installed locally, but once that's set up it's straightforward Python calls. Most useful if you're actually filing patents and need those clean technical figures, less so if you just want quick informal diagrams.