How to File an ARIPO Patent Application Covering Multiple African Countries

A patent granted in one country gives an inventor no rights anywhere else. For an applicant who has just secured a first patent in their home country and wants protection across Africa, the African Regional Intellectual Property Organization (ARIPO) offers a route that many foreign applicants overlook: a single application, filed once, that can cover Kenya and several neighbouring states at the same time. This guide walks through how that route actually works, who needs a local representative to use it, and the deadlines that matter most.

What the ARIPO Route Actually Covers

ARIPO administers the Harare Protocol on Patents, Utility Models and Industrial Designs, a treaty that lets an applicant file one patent application and designate any combination of the Protocol’s contracting states, which currently include Kenya, Uganda, Ghana and Zimbabwe among others. Instead of instructing separate counsel and paying separate official fees in each country, the applicant files once with ARIPO, names the states they want covered, and the application is examined and, if granted, takes effect in each designated state under a single procedure. The same Protocol also covers industrial designs and utility models; this guide focuses on the patent route specifically, see our guide to industrial design registration under the Harare Protocol for the design-specific requirements.

This is a different mechanism from entering the national phase under the Patent Cooperation Treaty (PCT). The PCT route only helps an applicant whose home country has joined the PCT and whose first filing was itself a PCT international application. An applicant whose home country has never joined the PCT, or who filed a standalone national application at home, is not shut out of Kenya or the wider region. The Harare Protocol route runs on the older, more widely available mechanism: the Paris Convention right of priority, available to any applicant from any Paris Convention member state, PCT membership or not.

Who Needs a Local Representative

Kenya’s Industrial Property Act requires an applicant whose ordinary residence or principal place of business is outside Kenya to be represented by an agent who is a Kenyan citizen admitted to practise before the Kenya Industrial Property Institute (KIPI). Admission to KIPI’s Register of Patent Agents is open to an advocate practising in Kenya, or to someone with a university degree in a science or technical field who can show familiarity with industrial property matters, on submission of Form IP 40 and the prescribed fee.

That KIPI registration does more than authorise work at the national level. Because a Representative before ARIPO must reside in a contracting state and hold the right to represent applicants before that state’s own industrial property office, a Kenyan-registered patent agent is entitled to act as Representative on an ARIPO application designating Kenya together with any of the other contracting states, without needing separate registration in each one. One local appointment, one Power of Attorney, and the application can proceed across the whole designated group.

The Paris Convention Priority Window

An applicant who already holds a first patent filing anywhere in the world, in their own country, has twelve months from that filing date to claim Paris Convention priority when filing the ARIPO application. Filing within that window means the ARIPO application is treated, for novelty and prior art purposes, as if it had been filed on the original priority date rather than the later ARIPO filing date. Miss the twelve months and that backdating is lost, which can matter a great deal if anything about the invention became public in the meantime.

Because the priority deadline is fixed and unforgiving, the practical planning window is shorter than twelve months. Time has to be left to instruct a representative, gather the priority document and translation if needed, adapt the specification and claims to the Protocol’s own patentability requirements, and complete the filing formalities before the deadline itself.

What Happens After Filing

Once ARIPO receives the application, it carries out a formality examination and notifies the applicant and each designated state of the filing date. Since amendments to the Protocol that took effect from 2017, a request for substantive examination is mandatory for every ARIPO patent application, not optional, and must be filed within three years of the ARIPO filing date together with the prescribed fee. An application for which no such request is made within that period is treated as lapsed.

Substantive examination at ARIPO level checks novelty, inventive step and industrial applicability. If the application meets those requirements, ARIPO issues notification of its decision to grant, and each designated state then has a window to respond under its own national law before the grant takes final effect there. That means the four (or however many) countries designated do not simply rubber-stamp an ARIPO grant. Each examines it under its own law, and can in principle raise its own objections, so the process is not fully finished at the point ARIPO issues its own grant notification.