AI Patent Annuity Fee Chatbot

No. The chatbot splits the work in two. The AI reads your question and works out which patents, countries and period you mean. A separate fee engine then calculates every fee and due date from official fee data and each country's renewal rules.

Before an answer reaches you, a fact check compares it with what the fee engine returned and blocks any amount or date the engine did not produce. If your question is missing something essential, such as a filing date or a country, the assistant asks for it instead of guessing.

Yes. Like any AI, it can misunderstand a question, for example by reading a date in a different format from the one you meant, or by picking the wrong country. The fee engine then calculates correctly, but for the wrong input.

That is why each answer shows the details it used, such as the country, the filing or grant date and the period. Check these first, and if something is off, correct it in the chat and ask again.

Results are also estimates of official fees, based on the fee data available when it was last checked. Patent offices can change their fees, so confirm the amount before you pay.

It is used only to answer your questions in the current chat and is not stored. You can upload .xlsx or .csv files with up to 100 patents, using our Excel template or your own file.

The chatbot reads the reference, filing route, filing date, grant date, countries, Unitary Patent and status columns. Rows it can't read are listed with the reason, so you can fix them and upload again. It never fills in missing dates or countries itself.

Within the same chat you can keep asking follow-up questions about the portfolio without uploading it again.

Yes. Questions and answers are saved without your name to help us improve the tool. If you leave your email, we also receive a short summary of the patents you asked about, so we can follow up.

The uploaded file itself is not stored. If you prefer not to share a patent reference, you can leave it out: for a single patent, the country and the filing or grant date are what the chatbot needs.

Yes, it is free. Your first result is shown in full. To see more results, the chatbot asks for your email address.

You don't need an account, and you don't need to become a PatentRenewal.com customer to keep using it. If you would like help paying your renewals, you can ask for a quote for your portfolio.

Over 90 countries on the EP and PCT routes, plus the EPO and the Unitary Patent. That covers fees paid to the EPO before grant as well as national renewal fees in the countries where a European patent is validated after grant.

Brazil, Mexico, Argentina, Chile, Indonesia, the Philippines, Taiwan, Hong Kong, Saudi Arabia and the UAE are not covered yet. You can ask the assistant whether a specific country is available.

No. It shows official base renewal fees only, the amounts patent offices charge for keeping a patent in force.

Service fees, late-payment surcharges and per-claim fees are not included. Per-claim fees apply in countries such as Japan, South Korea and Vietnam, where the fee also depends on the number of claims, so the amount you actually pay there can be higher.

Official fees are shown in each office's local currency, and totals are given in USD or EUR.

The chatbot estimates official fees for any patent you describe or upload, and anyone can use it for free. You give it the patent details each time, and it can't take actions.

The MCP is for PatentRenewal.com customers. It connects your own AI assistant to the portfolio data we already hold for you, so you can see your full renewal costs, including service fees, instruct renewals or drop cases, and keep your portfolio up to date from the chat.

Use our Patent Family Renewal Fee Calculator. You choose the filing route, enter the dates and pick the countries, and it calculates the next renewal for your patent family.

The form works well when you know exactly which patent family you want to check. The chatbot is quicker for open questions, several years at once or a whole spreadsheet. Both tools are free.