Shout if you want a grace period

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Shout if you want a grace period

Do patent owners want a harmonised grace period? The question is worth asking in the light of recent work done by AIPPI and the Tegernsee group of patent offices, as well as comments made following the passage of the America Invents Act

AIA (USPTO)

That Act gave the United States a first-to-file patent system, which for most international patent owners and applicants was a welcome step towards international harmonisation.

Many US practitioners, including then-USPTO Director David Kappos, expressed the view then that it was now Europe’s turn to reform, by reconsidering the introduction of a US-style grace period.

However, there has long been resistance to change in Europe, and the grace period remains one area where national laws diverge greatly: most (but not all) European states do not have one; countries such as Japan and Russia have a six-month period; while the United States, Australia, Canada and others have a 12-month period (see this helpful guide by UK patent attorney firm Mewburn Ellis for more detail).

Last year, though, that resistance seemed to be softening. At its ExCo meeting in Helsinki, the AIPPI (which has a strong representation from Europe) passed a resolution favouring the establishment of a 12-month grace period covering “any disclosure to the public by means of a written or oral description, by use, or in any other way” made by the inventor or a third party.

This year, in Toronto, a further resolution was passed on prior user rights.

Tegernsee group

Meanwhile, the Tegernsee group (comprising representatives of Denmark, France, Germany, Japan, the UK, US and EPO) identified the grace period and prior user rights as areas for harmonisation at their first meeting in July 2011.

In a report published earlier this year, the group (pictured left) noted that while Japanese and US users favour the grace period, it remains controversial in Europe: one survey saw respondents almost equally split for and against a grace period, while in Germany 61.5% were against. Moreover, the report noted that “there are divergences in the understanding of the role, systemic importance and optimal scope of the grace period, across the three regions”.

The report concludes this work cycle, but the so-called B+ group of countries – led by UK IPO chief executive John Alty – will continue to work on the issue. The question is: is it a priority for patent applicants and owners or not?

"There are divergences in the understanding of the role, systemic importance and optimal scope of the grace period."

I know some organisations, such as universities, are strongly in favour, even in countries that do not have a grace period at present (see this study by Science Business). Others would like harmonisation, but can’t agree on the details. Others oppose any change at all.

It seems like this is an issue where there is little incentive for governments to act, unless urged to do so by those affected in industry. If patent applicants and owners really want harmonisation, they need to make their voices heard – otherwise the issue is likely to slip into the background again.

more from across site and SHARED ros bottom lb

More from across our site

Erise IP has added a seven-practitioner trademark team from Hovey Williams, signalling its intention to help clients at all stages of development
News of prison sentences for ex-Samsung executives for trade secrets violation and an opposition filed by Taylor Swift were also among the top talking points
A multijurisdictional claim filed by InterDigital and a new spin-off firm in Germany were also among the top talking points
Duarte Lima, MD of Spruson & Ferguson’s Asia practice, says practitioners must adapt to process changes within IP systems, as well as be mindful of the implications of tech on their practices
Practitioners say the UK Supreme Court’s decision could boost the attractiveness of the UK for AI companies
New awards, including US ‘Firm of the Year’ and Latin America ‘Firm to Watch’, are among more than 90 prizes that will recognise firms and practitioners
DWF helped client Dairy UK secure a major victory at the UK Supreme Court
Hepworth Browne led Emotional Perception AI to victory at the UK Supreme Court, which rejected a previous appellate decision that said an AI network was not patentable
James Hill, general counsel at Norwich City FC, reveals how he balances fan engagement with brand enforcement, and when he calls on IP firms for advice
In the second of a two-part article, Gabrielle Faure-André and Stéphanie Garçon at Santarelli unpick EPO, UPC and French case law to assess the importance of clinical development timelines in inventive step analyses
Gift this article