Open Source · MIT + CC BY-SA 4.0 · Windows Desktop · v1.2.0

Patent Analyzer

A free Windows app that turns your invention idea into a professional patent feasibility report

Describe your invention. Click one button. Get a comprehensive patent feasibility report — prior art search, statutory analysis, IP strategy, cost estimates, and a plain-English summary — all generated automatically by a 6-stage AI pipeline powered by the Claude API.

No copy-pasting between chat windows. No manual orchestration. Just type your idea, hit Run Full Analysis, and watch the results stream in real time across all six stages.

Get the App on GitHub Quick Start Guide
6
Analysis Stages
10
Report Sections
~$1
Per Analysis
1
Click to Run

Six Stages, Fully Automated

The app runs each stage automatically, streaming results in real time. No manual copy-paste between conversations.

Stage 1
Technical Intake
Restates your invention in precise, patent-ready technical language. Identifies components, inventive concepts, and patent classification.
Stage 2
Prior Art Search
Searches patents, academic papers, commercial products, and open source for existing work. Maps findings against your invention in a comparison table.
Stage 3
Patentability Analysis
Full statutory analysis under §101, §102, §103, and §112. Risk ratings for each category plus common examiner concerns in this technology area.
Stage 4
Deep Dive
Domain-specific deep analysis for AI/ML, software, 3D printing, or whatever technology area applies to your invention.
Stage 5
IP Strategy
Filing landscape assessment, cost estimates, claim directions, trade secret boundaries, and potential blocking IP to discuss with counsel.
Stage 6
Final Report
Assembles everything into a polished 10-section report with a plain-English summary anyone can understand. Saved as Markdown and styled HTML.

Get Started in 4 Steps

  1. Download and run — Grab PatentAnalyzer.exe from the GitHub releases. No installer needed — it's a single file.
  2. Enter your API key — On first launch, enter your Anthropic API key in the Settings tab. It's encrypted on your machine using Windows DPAPI — never stored in plaintext.
  3. Describe your invention — Type or paste your invention description into the Analysis tab. The more detail, the better the results.
  4. Click Run Full Analysis — Watch all six stages stream in real time. When it's done, your report is saved automatically as Markdown and styled HTML.
Typical cost: $0.75–$1.50 per analysis. The app uses the Claude API with Haiku by default. A full 6-stage patent analysis typically costs under $1.50 in API fees. You can also use Sonnet or Opus for higher quality at higher cost.

Requirements

A Windows machine and an Anthropic API key. That's it.

What you need Windows 10 or 11 (64-bit). An Anthropic API key from console.anthropic.com. The WebView2 runtime (pre-installed on virtually all Windows 10/11 machines since 2021).
Note on prior art search The Anthropic API does not include web search. Stage 2 (Prior Art Search) generates results from the model's training data and clearly marks all references as unverified. For web-grounded prior art search, use the free prompt system with Claude Pro or Gemini Advanced, which have built-in web search.

App vs. Prompt System

Two ways to run the same analysis. Choose what fits your workflow.

Desktop App (this project)

  • One-click automated pipeline
  • Real-time streaming output
  • Auto-saves reports to disk
  • Encrypted API key storage
  • Requires Anthropic API key (~$1/run)
  • Prior art from training data (no web search)
  • Windows only

Prompt System (free)

  • Copy-paste between chat conversations
  • Works in any browser
  • Live web search for prior art
  • No API key needed
  • Included with Claude Pro or Gemini Advanced
  • Manual orchestration (6 copy-pastes)
  • Any platform

What's in v1.2.0

UPL compliance revisions — all prompts now position the AI as a research assistant with proper disclaimers.

  1. Research assistant positioning — All 6 embedded prompts now position the AI as an “AI-powered research assistant” with mandatory disclaimers on every stage output.
  2. Softened section titles — “File or Don’t File” is now “Filing Landscape Assessment,” “Examiner Rejection Simulation” is now “Common Examiner Concerns,” and more.
  3. Updated assessment labels — “FILE NOW” is now “LANDSCAPE FAVORS FILING” and similar labels updated throughout all stages.
  4. Export disclaimers — Disclaimer footer automatically appended to all HTML and Markdown exports.
  5. Dual licensing — Added CC BY-SA 4.0 license for embedded prompt content. Derivative works must retain all legal disclaimers.
  6. Legal notice & terms update — Added LEGAL_NOTICE.md and Section 5.5 (AI Limitations) to Terms of Service.
Legal Disclaimer
This tool provides AI-powered patent research support, not legal advice. The analysis does not create an attorney-client relationship, does not constitute a formal patentability or freedom-to-operate opinion, and should not be relied upon as a substitute for engagement with a registered patent attorney. Always consult a registered patent attorney before filing.