This report is about patent law firms in Great Britain. We analyze which patent law firms are most active in patent filing and prosecution. What are typical filing strategies and how do firms differ in terms of client structure?
First of all, it is important to explain what data we based the analysis on: It is all patent applications including granted patents since 2014. Our data set contains EP filings, national GB filings and international PCT applications handled by patent law firms located in the United Kingdom. The cases can be decided already, but can also still be in the prosecution process.
It is important to understand how we allocated the applications to the respective years. We use a mix of patent filing dates and dates of the earliest publication. Whenever an application is itself the priority filing, a direct EP or GB foreign filing or a PCT application filed by a British law firm, we refer to the application filing date. However, when an EP or GB application is a subsequent of a foreign priority and filed on the PCT route, we use the earliest publication date of such applications. This distinction is necessary because, in the raw data, PCT-based national phase applications usually receive the filing date of the underlying PCT rather than the actual filing date of the national filing. The earliest publication date is much closer to actual time a British law firm has worked on the filing. It is published a few weeks or months after the transmission to the patent offices.
For priority applications, patents information are usually published 18 months after they have been filed. Therefore, figures cannot yet be complete for 2017 and 2018 applications/grants. We have included the latest publications we have available.