Use case

Defensive publication: protect without a patent

Protect an invention without filing a patent: date your work so you can keep using it, then publish it when you choose so that no one else can patent it.

The situation

One scenario, two outcomes

The same moment, depending on whether the work was timestamped or not.

The trigger

Your team develops an assembly method that saves twelve percent in time. It doesn't warrant a patent.

Without proof

Two years later, a competitor files exactly this solution. They get their patent and send you a cease-and-desist demanding you stop using your own method. You have to prove a prior user right (your right to keep using the method) with internal documents that have no independent date.

With a certificate

The method was timestamped, then disclosed through a defensive publication. It entered the prior art (what is already public and can no longer be patented) at a verifiable date. The competitor's filing can be challenged on this basis and your freedom to operate is documented.

Is your situation different?

The need

Freedom to operate, patent cost, strategic trade-off.

Prevent rather than claim

Whether to patent depends on its cost, its duration, and the obligation to disclose the invention. Defensive publication serves a different purpose: it locks down the prior art so no one else can patent the same solution and bar you from using it.

Preserving your freedom to operate

Dated prior existence lets you prove a prior user right, so you can keep using your solution even if a competitor files a patent after you. It complements a patent strategy.

Decide later

Timestamp first, decide later: the evidence secures your date while you weigh whether the patent is worth the cost. Only the fingerprint is made public. The content stays confidential until you choose to publish it.

→Proven date without immediate disclosure: you choose when to publish
→Publication triggered at the moment you choose
→Complements a patent filing strategy
→Lifetime record, publicly verifiable

For an answer tailored to your case, talk to an expert: this page describes a typical situation, and yours has its own specifics.

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See also

Two related pages and two guides to continue.

Technology transfer

Open →

Trade secrets

Open →

Guide: Soleau, bailiff report or online timestamping

Open →

Guide: the lab notebook

Open →

Torn between several of these situations?

Describe what you want to protect and when. We'll open the case that fits.

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