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Make Smarter Patent Searches with AI

PQAI changes the way you search for prior art. It helps innovators, businesses, and researchers move their ideas forward with confidence.

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What Problem Does PQAI Solve?

Patent Searches Take Too Long

Inventors waste hours digging through dense patent databases. PQAI streamlines the process with intuitive, AI-powered tools that provide precise, relevant results in seconds.

Many Ideas Get Rejected

Thousands of patent applications are rejected every year for reinventing already patented ideas. PQAI helps you identify existing patents so you can refine your idea and avoid costly mistakes.

Patent Search Tools Are Expensive

Access to high-quality tools is often out of reach for small inventors and startups. PQAI is free, making cutting-edge patent searches accessible to everyone.

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How PQAI Works

Type Your Idea

Describe your invention in your own words. PQAI understands natural language, so no special formatting or technical expertise is needed.

Find Relevant Results

Using advanced AI, PQAI scours patent databases to uncover the most relevant prior art, giving you clear insights in seconds.

Refine Your Strategy

Analyze the results to determine if your idea is truly unique or if it needs adjustments before moving forward.

Share and Collaborate

Export detailed reports to share with attorneys, investors, or collaborators. This helps you take the next steps with clarity and confidence.

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Who Is PQAI For?

PQAI changes the way you search for prior art. It helps innovators, businesses, and researchers move their ideas forward with confidence.

For Individual Inventors

Have a big idea? Wondering if it’s unique? PQAI helps you check if your invention is already patented. Save time, save money, and move forward with confidence. Try PQAI Now »

For Law Firms

Clients expect results. PQAI helps you improve 102/103 opinions. Reduce rejections. Boost grant rates. Deliver better outcomes for your clients. Try PQAI Now »

For Patent Examiners

Searching for prior art can be overwhelming. PQAI removes the noise. Find only the most relevant prior art in minutes. Try PQAI Now »

For Enterprises

Managing IP budgets is tough. Use PQAI to validate ideas early. Reduce costs on searches. Focus more resources on innovation. Try PQAI Now »

For R&D Teams

Want to stay ahead of the competition? Use PQAI to explore patent trends. Validate concepts faster. Accelerate your innovation process. Try PQAI Now »

Your Ideas Are Secure with PQAI

Your innovation is yours alone. PQAI is here to help you explore prior art without compromising your privacy.

No Logs, No Records

We don’t store or track your search queries. Once your results are generated, your query is erased from our servers.

Secure Connections

Every search is sent to PQAI’s servers through an encrypted, secure link, keeping your data safe during transmission.

Results Stay with You

Any results you bookmark or save are stored directly in your browser on your device. They’re not uploaded to our servers and will be available only on the same browser when you revisit PQAI.

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Data Sources

Loved By Innovators Worldwide

The use of search terms, applicants and patent classes is a common way of formulating a search pattern. However, we have found that knowledge of patent classes and how they relate to subject matter is not so widespread, especially among users who do not deal with patents on a daily basis. Among other things, PQAI suggests appropriate classes based on a text, which is extremely helpful and time-saving. It also widens the scope of the search.

We use PQAI a lot and can highly recommend it to other users.
Thomas Sütterlin
PQAI is a fantastic project that provides a user with a powerful patent search tool at their fingertips. It is by far the easiest and most effective way to quickly track down relevant IP utilising natural language queries, surpassing all the other free services I have tried in this field, and even some paid databases. Its API is also a great feature that has been integrated into some of our in-house tools, allowing our designers and researchers to quickly get a view of the patent landscape for a particular idea, without the need to switch their attention to another platform. In a world where some are suspicious of the rise and power of AI, it is wonderful to see it being put to good use like this and freely available to everyone interested.
Tobias King
As an AI Fellow at R42 Group, I spearheaded the development of a cutting-edge patent search tool tailored for the life sciences industry. Leveraging PQAI's robust API as the backend system, I was able to create an innovative solution that significantly enhances patent search capabilities. The swift and expert support from the PQAI team played a crucial role in the success of this project, enabling seamless integration and rapid development.
Akshay Harlalka
I value PQAI a lot because it offers a powerful to retrieve patents via a semantic search. My impression is that this semantic search is carried out within the abstracts.

I find the various endpoints very useful, for example that endpoint which returns independent claims specifically.
Inventor
really liked the experience with PQAI so far! I'm primarily using the semantic search and semantic CPC lookup, mostly through the API and sometimes over the website. Response times are really good, and the API has a nice developer experience.
Daniel Stoll

Funders and Supporters

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Be part of a global initiative to improve patent quality and democratize innovation. Start using PQAI today or support our mission.
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Do You Have Questions?

We have answers (well, most of the time!)

Below you’ll find answers to the most common questions you may have about PQAI. If you still can’t find the answer you’re looking for, just Contact us.

Yes, absolutely. We take privacy seriously, and all searches conducted on PQAI remain confidential. No data is stored or ingested into the model in a way that could lead to disclosure of your search terms or information. Our system is designed to protect your intellectual property at every step.

No, PQAI does not store or reuse search data. Your searches are processed in real time, and the system does not retain any record of your queries, ensuring complete privacy and security for independent inventors and organizations alike.
Unlike generalized AI tools, PQAI is purpose-built for patent search and does not ingest user data into its model. Our platform operates securely to ensure that sensitive information, such as novelty-related queries, is never exposed to potential risks.
Yes, PQAI is free to use as an open-source platform. For users who need advanced features like faster speeds, larger search results, and API access, we offer a premium plan, PQAI+, starting at $20/month.
Yes! PQAI uses advanced AI to provide relevant prior art references, helping you identify existing patents and preventing potential reinvention. This ensures you save time, effort, and resources by focusing on truly novel innovations.

PQAI is an open-source platform designed to democratize patent search. It offers:

  • Natural language queries for intuitive searches.
  • Combinational prior art searches for 103 rejections.
  • Advanced tools like concept extractors and CPC lookups.
  • Secure, transparent, and user-focused operations.
Yes, with PQAI+, you can access up to 50 API queries per day to integrate patent search capabilities directly into your workflows. This feature is perfect for organizations managing large-scale innovation efforts.
We offer community support through our open-source initiative, as well as detailed documentation to guide you. If you’re using PQAI+, additional support options are available to ensure a seamless experience.
PQAI is built as an open-source platform to foster transparency, trust, and collaboration. This means the community can review, contribute to, and build upon the tool, ensuring it remains innovative and inclusive.
Yes, PQAI is designed to support global patent searches, providing insights into patents from multiple jurisdictions. This helps users conduct comprehensive research across different regions.
PQAI is a collaborative initiative to improve the patenting process by developing tools that enable better prior-art search and analysis.
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    Subject: Letter of Support for PQAI

    Dear PQAI Team,

    We are pleased to express our support for PQAI and its mission to revolutionize patent searching through open-source, AI-driven solutions.

    At [COMPANY NAME], we recognize the importance of accessible and efficient patent tools in fostering innovation and empowering inventors from diverse backgrounds. By supporting PQAI, we aim to contribute to the development of transparent, collaborative, and impactful solutions for the intellectual property community.

    We kindly request the addition of [COMPANY NAME] to the official List of Supporters of PQAI.

    Sincerely,

    [CEO or Equivalent Name]
    [Title]
    [Company Name]
    [Signature]