How to Write and File Your Own Provisional Patent Application Using AI

A Step-by-Step Guide for PPA Filings by Independent Inventors

You don't necessarily need a patent attorney to prepare and file a provisional patent application (PPA). With careful work and the help of AI, you can do it yourself. AI makes the process easier, but you're responsible for ensuring the invention is accurately and completely described.

Note: This guide provides general educational information from a business perspective. It is not legal advice. Patent laws, USPTO procedures, and AI-related legal interpretations can change. Consult a qualified patent professional when appropriate.

Step-by-Step Instructions

1. Choose your AI tools.

Get accounts with at least two AI systems, such as ChatGPT, Perplexity, Gemini, Claude, or Grok. Paid versions are recommended. Review privacy policies and disable model training and public sharing wherever possible. Different AI systems may catch different mistakes.

2. Search for prior art.

Describe your invention in detail to the first AI system. Ask it to search patents, published patent applications, and similar products. Request links to original sources and verify the results.

3. Identify what's special.

Review the search results. Think about what makes your invention different, especially how it works rather than just what it does.

4. Create drawings.

Draw your invention from different angles, showing important details. Number the parts. Clear, informal pencil sketches are fine.

5. Describe everything.

Explain each numbered part, what it does, how parts interact, and how the invention is assembled, made, and used. Use clear everyday language.

6. Think about alternatives.

Consider different shapes, materials, mechanisms, arrangements, and sizes. Draw and describe these variations to help support broader potential protection.

7. Have AI write the specification.

Upload your research, drawings, and descriptions. Prompt: “Write a comprehensive provisional patent specification based on these materials. Include detailed descriptions of the invention, its operation, and alternative embodiments. Do not invent technical details. Identify anything that needs clarification or further explanation.”

8. Create a Word document.

Download the draft as an editable Word document and carefully check its technical accuracy.

9. Get a second opinion.

Upload the draft, drawings, descriptions, and prior art research to another AI system. Prompt: “Review this provisional patent specification for completeness, clarity, consistency, missing technical details, and opportunities for broader protection. Identify weaknesses and recommend improvements.”

10. Revise.

Incorporate useful suggestions, but do not blindly accept AI recommendations.

11. Repeat.

Go back and forth between the two systems until there are no significant improvements. You can reverse the writer and reviewer roles.

12. Prepare the filing document.

Combine the specification and numbered drawings into one document. Check references and ask AI to look for omissions or inconsistencies. Save it as Specification.pdf.

13. Register with the USPTO.

Create an account at USPTO.gov and complete any required identity verification. This may be the biggest hassle!

14. File the application.

Use the USPTO Patent Center to upload the specification, provide the required cover sheet or application data, and pay the current fee. AI can help explain filing screenshots. Save your filing receipt and application number.

Important Things to Know

A provisional application is not a patent.

It is not examined for patentability and does not itself grant enforceable rights. It may establish a priority date for subject matter adequately disclosed. A corresponding nonprovisional application generally must be filed within 12 months to claim its benefit.

Details matter.

New technical information added later generally cannot claim the earlier filing date. Describe how to make and use the invention, including meaningful variations, as fully as possible.

AI can make mistakes.

AI can misunderstand details, invent features, or cite nonexistent patents. Two AI systems agreeing does not guarantee accuracy or legal adequacy.

AI, public disclosure, and confidentiality.

Although there is not yet definitive case law on the subject, the prevailing view among patent practitioners is that discussing an invention in a private AI conversation does not constitute a public disclosure that would jeopardize patent rights. This is consistent with the long-standing principle that information generally must be publicly accessible to qualify as a patent-defeating printed publication.

To avoid creating a public disclosure, keep invention-related AI conversations private. Never share public links to these chats, and disable public sharing and model training wherever possible.

Keep in mind that public disclosure and legal confidentiality are different concepts. AI conversations may be discoverable in litigation without having been publicly disclosed, and they are not automatically protected by attorney-client privilege.

Keep your invention confidential until filing.

Public disclosure can jeopardize rights, especially outside the United States. Employment obligations, NDAs, joint ownership, sales activity, and other circumstances can also matter.

You can file more than one provisional application.

It is common to file additional PPAs as an invention evolves. Each new application has its own 12-month period; it does not extend an earlier filing deadline. A later, more complete application may be more valuable for features the first did not adequately describe. In a slow-moving field, an inventor who has not publicly disclosed the invention might choose to abandon the earlier priority date and file again near the end of the year. In a fast-moving field, even a day can matter. Refiling creates a new date, not an extension, and intervening filings, publications, sales, and other events can create risks. Get professional advice before deliberately giving up priority.

A DIY PPA can help control costs.

It can provide an early filing opportunity while you decide whether to commit to development, licensing, or commercialization. Note that the one year deadline to retain priority for a non-provisional filing in the USA, also applies to international patents.

Final Thoughts

The goal isn't a document that sounds like a patent attorney wrote it. The goal is to describe your invention so completely that someone skilled in the field can understand how to make and use it, including important variations.

AI is your assistant, not your inventor. You're responsible for getting the details right.

P.S. A Word About Professional Help

Preparing your own PPA with AI can be a smart way to keep costs down while exploring an invention. Not every idea deserves a major investment, and a DIY PPA can give you time to evaluate its potential.

But many inventors find professional help worthwhile, particularly as an invention develops and the stakes increase. Having reviewed many inventor-written PPAs, I can honestly say there is real value in having Invention City help you in conjunction with a registered patent practitioner.

Our team has hundreds of issued patents in the U.S. and worldwide. We've also had the rare experience of taking patent litigation all the way through jury trial and appeal. That experience has taught us a great deal about the practical realities of patents, their strengths, weaknesses, and risks.

AI is powerful, and I encourage inventors to use it. But knowing what to describe, what to emphasize, and how to anticipate future challenges still benefits enormously from experience.

The goal isn't simply to file a provisional application. It's to file one that will serve you well when it matters.

If you would like professional help preparing and filing your provisional patent application, contact Invention City.

- Mike Marks