Publication

There is a day when your application stops being private and the whole world can read it. Most applicants are surprised by how early that day arrives.

In simple words

The Patent Office publishes your application in the Official Journal, ordinarily eighteen months from the earlier of your filing date and your priority date. You can also ask for it to be published earlier.

Think of it as

The day the envelope is opened in public.

Why it matters

Publication starts the clock on pre-grant opposition, makes your disclosure citable prior art against everyone else, and gives you certain rights that can only be enforced after grant. It is also the point at which competitors can read exactly what you filed.

A simple example

You file in January 2026 with no earlier priority. Ordinarily your application will publish around July 2027. If you need it in the public domain sooner - for a licensing conversation, or to block someone else - you can request early publication.

Common mistake

Assuming an application stays confidential until grant. It does not, unless it is withdrawn in time or is subject to a secrecy direction.

Where it comes from

Patents Act 1970 - section 11A; Patents Rules 2003, rules 24 and 24A (early publication, Form 9)