Patent Search & Prior Art Documentation Checklist

Thorough patent research requires searching both patent databases and non-patent literature, then documenting how your invention is specifically novel compared to what's found.

Inventors sometimes search only patent databases and miss non-patent prior art, or fail to document their search process thoroughly enough to support a strong application.

Why This Happens

Prior art can exist in many forms beyond patent filings, and without a systematic search across multiple source types, it's easy to miss something that later affects patentability.

What's Inside

This checklist is interactive, click to check off items in your browser, plus printable if you'd rather keep it with your invention records, and it covers the federal legal application prep and prior art research process specific to patents.

Quick Tips

Search non-patent literature too, not just patent databases.

Document your search process thoroughly for future reference.

Identify specific differentiation from any prior art found.

Pairs well with: Irs Tax Audit Documentation Checklist

Frequently Asked Questions

What counts as prior art?

Prior art includes existing patents, published articles, product listings, and any public disclosure of similar ideas, not just other patent filings.

Do I need a patent attorney to file?

It's not strictly required, but complex inventions often benefit significantly from professional guidance given how intricate patent law can be.

What's the difference between a provisional and full patent application?

A provisional application establishes an early filing date with lower cost and less formal requirements, while a full application undergoes complete examination toward an actual patent grant.

How thorough does a prior art search need to be?

As thorough as possible, since an incomplete search can result in a rejected application or a patent that's later successfully challenged based on prior art you missed.