Court blocks prior art time travel

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

Court blocks prior art time travel

time-travel-min-final.jpg

In the latest international briefing for Germany, Julia Mössinger examines a court decision dealing with prior art disclosure

In Drahtloses Kommunikationsnetz (X ZR 14/17), the German Federal Court of Justice had to deal with a prior art disclosure that had been published online. Internet publications are published at the same time in different time zones on different local dates.

The disclosure in question was published online at 8:36 CET on January 8 2008 on a European server. Due to the time difference, the document was available in Hawaii on January 7 2008 local time. The plaintiff claimed that the disclosure's publication date was January 7 2008.

Three different scenarios were discussed:

(i) The publication date of a disclosure is determined by the time zone of the patent office receiving the patent application. Even if a disclosure is published in Hawaii at an earlier (local) date, the relevant date is the (local) date at the patent office at the time of publishing the disclosure (applied by High Court, Birss J [2015] EWHC 3366, Court of Appeal, Gross LJ, Floyd LJ, Arnold J, [2017] EWCA Civ 266 - Unwired Planet International Ltd v Huawei Technologies Co Ltd; EPO Opposition Division - 03 012 734.4).

(ii) The publication date of a disclosure is the local date where publication occurs. In case of an internet upload, this should be according to the geographical location of the person/entity uploading the disclosure.

(iii) The publication date is considered the earliest local date of any location where the prior art disclosure became available. Hence, the publication date of an online publication is the local date of the time zone with the earliest time where the disclosure is available (applied by EPO, 09 733 661.4).

The court rejected scenario (iii), holding that there is no basis for extending the time of a disclosure beyond the geographic location of the publication. Further, scenario (iii) requires determining the exact time (hour, minute) of publication, which may cause difficulties.

Regarding scenarios (i) and (ii), no ruling was made, since both scenarios yielded the same result in the situation in question. Scenario (i) avoids a circumstance where a disclosure published after filing the application becomes prior art. However, it is necessary to determine the time of publication exactly in order to determine the local date at the receiving office.

For scenario (ii), the exact time of publication is not relevant. This scenario accords most with the principles applied by the PCT. For example, when filing priority applications and subsequent applications, the local date at the respective filing office is decisive. However, the second scenario does not rule out the possibility that a disclosure published after filing an application can become prior art.

Mossinger

Julia Mössinger


Maiwald Patentanwalts- und Rechtsanwaltsgesellschaft mbH


Elisenhof, Elisenstr 3

D-80335, Munich, Germany

Tel: +49 89 74 72 660 

Fax: +49 89 77 64 24

info@maiwald.eu

www.maiwald.eu

more from across site and SHARED ros bottom lb

More from across our site

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
Public figures are turning to trademark protection to combat the threat of AI deepfakes and are monetising their brand through licensing deals, a trend that law firms are keen to capitalise on
News of Avanci Video signing its first video licence and a win for patent innovators in Australia were also among the top talking points
Gift this article