19. May 2026

The danger of using AI for patent searches

5th December 2025

With AI becoming a readily available research tool, many people are attempting to utilise the various LLM's as an apparently efficient or cheaper alternative to employing technical research services.

Today I asked Chat GPT to explain why it is not a reliable source for Patent Searches. 

You can access the original chat window here:

https://chatgpt.com/share/6932d040-81f4-8007-9da2-3cd9d8163870

What it has revealed may be quite shocking, but the LLM openly admits to fabricating information! 

Ultimately, Chat GPT advises that: "Given these stakes, only professional patent searchers or IP attorneys using authoritative tools should conduct or interpret patent searches."

Explain why you are not a reliable source for patent searches

ChatGPT said:

There are several important reasons why I am not a reliable source for patent searches, and understanding them will help you avoid critical mistakes in IP work:

1. I do not have real-time access to patent databases

Patent searches require querying up-to-date databases such as:

USPTO

WIPO (PATENTSCOPE)

EPO (Espacenet)

National patent offices

I don’t have live access to these systems, and I can’t verify whether a patent exists, has been granted, rejected, expired, or is still pending.

2. I can produce incorrect or fabricated patent numbers

Because I generate text statistically, not from verified registries, I may:

Produce plausible-looking but nonexistent patent numbers

Attribute inventions to the wrong inventors

Misstate filing dates, legal statuses, or jurisdictions

This is dangerous in a legal context.

3. Patent searching requires specialized legal and technical expertise

A proper patentability or freedom-to-operate search requires:

Understanding claim language

Identifying prior art across multiple jurisdictions

Interpreting legal status events

Assessing scope and equivalents

I can explain these concepts, but I cannot perform them at a legally reliable level.

4. Patent databases contain structured data I cannot fully replicate

Patent documents include:

Claims written with precise legal meaning

Classification codes (IPC, CPC)

Continuations, divisionals, and family relationships

File history documents

Because I don’t access or verify this structured information, I cannot ensure completeness or accuracy.

5. Legal consequences make reliability essential

Incorrect or incomplete patent search results can lead to:

Filing invalid or easily rejected patent applications

Infringement lawsuits

Wasted R&D efforts

Missed prior art

Given these stakes, only professional patent searchers or IP attorneys using authoritative tools should conduct or interpret patent searches.

What I can do reliably

I can help you:

Understand how patent searches work

Explain IPC/CPC codes

Interpret claim language (at an educational level)

Draft or refine patent-style descriptions

Prepare for a discussion with a patent attorney

But I cannot replace a real patent search or provide legally dependable prior-art results.

If you want, I can also outline:

How to perform a proper patent search

Which databases to use

What kinds of results to collect before speaking with an attorney