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(parts of the) cover page of a related EPO brochure

During the past 15 years the Boards of Appeal of the EPO have developed a consistent case law as to the pragmatic problem/solution approach for assessing patentability pursuent Art 52 -57 EPC. In our earlier overview on

EPO case law regarding patentability of software inventions,

to which this posting is meant as a more practical continuation, we briefly characterised the EPO’s main examination approach:

[M]odern case law [of the EPO Boards of Appeal on software inventions], especially the suggestion in T 1173/97 that the “technical contribution” is an inventive step consideration and the observation in some early cases (e.g. T 38/86 and T 65/86) that the “inventive contribution” must lie in a “field of technology”, almost naturally lead to the problem-solution approach as developed in T 641/00 (COMVIK) and T 258/03 (Hitachi) and theoretically justified in T 154/04 (Duns).

This approach nowadays is the crucial test to differentiate between a technical contribution implementing a non-technical concept (e.g. a business method) and an inventive contribution in a technical field (e.g. an embedded control software). Its general idea is that only the technical features of a claim may be taken into account for assessing inventive step, while the non-technical features form a basis for formulating the underlying problem, with the effect that the non-technical features may render the technical solution obvious.

This approach is widely accepted among practitioners as enhancing legal security for applicants since it represents a comprehensible benchmark against which EPO decisions are subject to verifiction.

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Fernando Pessoa contemplating on patentability of software inventions.

Back in September 2010 the EPO-sponsored 15th European Patent Judge’s Symposium took place in Lisbon, where the judges discussed developments in European patent law. The symposium was attended by 120 patent judges from Europe and guests from the USA and Japan. A big issue of course was the EU patent and the related litigation system, but the related discussion is now meaningless in view of the recent developments in this regard. But there were other interesting topics discussed as well.

For instance, in a working session on “Patentability of Computer implemented inventions”, Mr. Dai Rees – Chairman of an EPO appeal board and member of the Enlarged Board of Appeals that issued the G3/08 opinion – outlined the developments of the respective EPO case law. His contribution is documented in an article in the conference proceedings: Special edition 1/2011 of EPO Office Journal (PDF, 5 MB), pp. 93 to 102. The below summary reflects my personal observations and understanding of Mr. Rees presentation and also contains some individual flavours and thoughts.

Relevant Provisions: As a reminder, the provisions of the EPC to be considered for computer programs or technicality issues not only involve Art 52 EPC (“programs for computers as such“), but also Articles 18, 19, 21, 22 and Rules 42(1)(a), (c), 43(1) and 44 EPC, which use the term “technical” in different contexts. Further, in the EPC 2000 revision, Art 52(1) EPC was clarified in that patents shall be granted for inventions “in all fields of technology”, which, however, was regarded as a clarification rather than a substantive amendment of the Convention.

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