Patent drafting is a strategy problem before it is a writing problem. One wrong inference, one gap in the novelty argument, and the application may not defend what the inventor actually built. Eety.ai builds a 15-point invention model — the Brain — before writing begins. It captures novelty, component interactions, and claim strategy. Each dimension is confidence-scored; incomplete fields block drafting until resolved. Gaps trigger targeted engineer-perspective questions specific to exactly what's missing, incorporated without disturbing confirmed analysis. Drafting runs through a 10-phase pipeline with an attorney-approved plan before any section executes. Drawings generate as editable SVGs with numerals tracked across all figures and text. Style DNA mirrors the attorney's own voice from reference filings. Nine templates enforce USPTO, EPO, PCT, and UKIPO conventions. Team access, audit trail, style compliance checking, and section-level review complete the pre-filing workflow.