Unity of invention under the European Patent Convention

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Lua error in package.lua at line 80: module 'strict' not found. Under Article 82 EPC, a European patent application must "...relate to one invention only or to a group of inventions so linked as to form a single general inventive concept."[1] This legal provision is the application, within the European Patent Convention, of the requirement of unity of invention, which applies also in many other jurisdictions.

The lack of unity or non-unity (of invention), can appear either a priori, i.e., before taking into account the prior art, or a posteriori, i.e., after taking into account the prior art. An a posteriori lack of unity usually results from a lack of novelty or inventive step of the subject-matter of one independent claim.

Unity amongst a group of inventions

When a European patent application claims a group of inventions, "unity of invention" is considered present if "...there is a technical relationship among those inventions involving one or more of the same or corresponding special technical features."[2]

Search phase

If, when carrying out a search, the search division considers that the application lacks unity (i.e., it doesn't meet the provisions of Article 82), a partial search report is established.[3] The EPO then requires one or more further search fees for the other identified inventions, or groups of inventions, that the search may cover.[3]

The former time limit for paying the further search fees was a period the EPO specified as between two weeks and six weeks.[3] Under new Rule 64 EPC, in force as of April 1, 2010,[4] the time limit for the further search fees is now two months.[5]

Interactions between search and examination phases

Responsibility for establishing whether or not a European patent application meets the requirements of unity of invention ultimately rests with the examining division.[6]

Therefore, the findings of the search division—that the application lacks unity—may be contested before the examining division, during the examination phase. If successful, and if further search fees were paid during the search phase, the further search fees may be refunded.[7] If successful, and if further search fees had not been paid during the search phase, "...the applicant is entitled as of right to have the whole subject-matter of his unitary invention searched."[8]

Examination phase

Under the former version of Rule 36 EPC, an objection of lack of unity of invention raised in a communication of the Examining Division could trigger a 24-month period for filing a divisional application, if the particular objection was raised for the first time. However, under the amended version of Rule 36 EPC which came into effect in April 2014, divisional applications can be filed at any time providing the parent European application remains pending.[9]

References

  1. ↑ Article 82 EPC
  2. ↑ Rule 44(1) EPC
  3. ↑ 3.0 3.1 3.2 Rule 64(1) EPC
  4. ↑ Decision of the Administrative Council of 25 March 2009 amending the Implementing Regulations to the European Patent Convention (CA/D 3/09), Article 2(1).
  5. ↑ Decision of the Admin. Council, CA/D 3/09, Article 1.3.
  6. ↑ Decision J 3/09 of the Legal Board of Appeal of 28 May 2010, Catchword 1. Decision T 1285/11 of the Technical Board of Appeal 3.3.01 of 15 December 2011, Reasons for the Decision, 3.1.
  7. ↑ Rule 64(2) EPC
  8. ↑ Decision T 1285/11 of the Technical Board of Appeal 3.3.01 of 15 December 2011, Reasons for the Decision, 3.1, 5th paragraph.
  9. ↑ Rule 36 EPC

External links

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