Free Patent Drawing Generator

Problem

Patent figures are not decorative illustrations; they are a visual statement of the scope of the claimed invention. Engineers often have a technical disclosure, claim set, or scheme description but need a quick way to turn that text into patent-style line drawings. The output must remain black-and-white, concise, and faithful to the source, without adding modules, signals, or relationships that are not present.

How It Works

The skill processes input in three confirmation-gated stages:
- Figure titles: it identifies independently drawable logical units, such as system architecture, method flow, module structure, or signal/data flow, and produces titles like Fig. X is a schematic diagram of the XX system.
- Drawing plan: it extracts named entities, maps relationships to boxes, arrows, diamonds, and dashed lines, compresses labels to key nouns, and provides a plain-language layout preview before any drawing is generated.
- SVG output: after confirmation, it produces black-and-white line SVGs, roughly 800px wide, with consistent line style, centered text, directional arrows, and alignment checks for endpoints, crossings, and completeness.

Boundaries

It is suitable for method/flow diagrams, system architecture diagrams, simple mechanical structural diagrams, signal/data-flow diagrams, and state-transition diagrams. It should not be used for exact dimensioned engineering drawings, section views, 3D structural drawings, complex circuit schematics, chemical structures, or optical path diagrams. No more than three SVG figures are generated per interaction; additional figures should be produced in batches.