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You showed it at a trade show, posted a video, sold it to a customer or published a paper. Pick how and when, and see whether China, the US, Europe and the UK still allow a filing, and by which date.
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Pick how it was disclosed, enter the date and the countries. You get a verdict for each country in seconds.
Assumes you have not filed a patent application for this technology in any country before the disclosure. If you have, you may be able to claim priority within 12 months, and the results below do not apply.
Many people only find out after the fact
Most countries require absolute novelty. What you showed at a fair, published in a paper or posted on your website before the filing date is treated as prior art.
The US gives 12 months. China gives 6 months in a few cases only. Europe and the UK give almost nothing. Assuming they are all alike leads to wrong calls.
The deadline counts from the earliest disclosure, and the conditions and proof differ by country. Once it passes, it cannot be recovered.
One result card per country, stating clearly whether you can still file
Within the grace period, no grace period, grace period ended, or generally not a public disclosure.
For countries with a grace period, you see the date to file before and how many days remain.
For example a declaration in the request form or proof documents, with the statute cited so you can check it yourself.
Trade show, paper, website or video, on sale, a pitch under a confidentiality agreement, a leak by someone else, and more. Pick only the earliest one.
Enter the date of the earliest disclosure, then select where you want to file.
One card per country. Improvements you have not disclosed can be written up as a patent application draft.
This page applies the rules in the statutes. The rules are fixed, no AI model is involved, and the same input always gives the same result. It does not know what exactly you disclosed, and it does not judge whether your technology is novel or inventive. Each country has details on what counts as disclosure, first disclosure and proof, so please have the result professionally reviewed before filing.
Enter the earliest one. The grace period counts from the earliest disclosure. Later disclosures are judged on their own.
Not quite. It only keeps that one disclosure from counting against novelty, and you must file before the deadline. If someone else independently makes the same thing and files or publishes between your disclosure and your filing, it can still affect you.
Then within 12 months your applications in other countries can claim priority, and disclosures after the priority date do not count against them. This page assumes no application was filed before the disclosure, so it does not apply to your case.
Generally it is not, but it depends on whether the other side is really bound and whether the content leaked. A completed sale or a price quote is a different matter: US courts have held that a sale can still be an on-sale disclosure even when the buyer is bound to confidentiality.
In a country with no grace period, or where the grace period has ended, disclosed content generally cannot be patented. Improvements and new embodiments you have not disclosed may still be filed separately, and you can write them up as an application draft.
The check runs in your browser. We only count which kind of disclosure and which countries were chosen. The date you enter is not recorded.
Disclaimer
This page gives a preliminary reading of the statutes. It is not legal advice and does not promise that any application will be granted. Laws change and individual cases have details. Please have the result professionally reviewed before filing.