Best AI patent drafting tools for inventors.

PatentPending.ai

Best for: Inventors who want disclosure development plus review options

$599, $1,399, or $1,599 per application

AI patent drafting software for independent inventors preparing provisional patent applications.

PatentPending.ai moves source material through eight defined development, drafting, and review stages. It is not the lowest-cost option, but it provides a direct path from invention materials to a reviewable Word draft, attorney feedback, and filing support.

Idea2PatentAI

Best for: Lowest-cost one-time inventor draft

$79 for one application; $199 for three, plus sales tax

An inventor-focused platform for drafting provisional patent applications through guided input and AI recommendations.

Idea2PatentAI earns the narrow concession on price. It offers inventor-oriented guidance, an editor, and Word/PDF downloads at a substantially lower published entry price. Buyers who want included attorney review should verify the referral and engagement process separately.

PatentProtector.ai

Best for: Low monthly entry and credit-based tool access

$1 first month, then $16/month; $36 Basic; $180 Professional

A credit-based platform combining invention disclosure, drafting, editing, prior-art search, and optional filing or review activities.

The key diligence question is total project cost. Drafting, regeneration, search, filing, and review consume different credit amounts, so compare the credits required for the complete workflow you expect to use.

DeepIP

Best for: Patent professionals working in a practitioner workflow

Contact for current pricing

An AI patent drafting and prosecution platform aimed at patent professionals.

DeepIP appears frequently in the category SERP, but its audience differs from a first-time independent inventor’s. It belongs on the shortlist for law firms and corporate IP teams rather than inventors choosing a per-application provisional service.

Solve Intelligence

Best for: Patent teams needing a broad browser-based platform

Contact for current pricing

A browser-based AI platform covering invention harvesting, drafting, prosecution, figures, and claim-chart work.

Solve Intelligence is broader than a provisional-only inventor tool. That breadth may be valuable to practitioners, but independent inventors should compare onboarding, professional assumptions, and pricing against inventor-specific products.

ChatGPT

Best for: Brainstorming and technical explanation

Depends on OpenAI plan

A general-purpose AI assistant useful for brainstorming, organizing thoughts, and explaining technical ideas.

ChatGPT can generate patent-style language, but the user designs the prompts, coverage, drafting sequence, review checks, and final document structure. A practical path is to develop the idea in ChatGPT, then bring that material into a defined patent-development workflow.