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The European Patent Convention

 
 

Rule 137[ 115 ],[ 116 ]
Amendment of the European patent application

(1)
Before receiving the European search report, the applicant may not amend the description, claims or drawings of a European patent application unless otherwise provided. 
(2)
Together with any comments, corrections or amendments made in response to communications by the European Patent Office under Rule 70a, paragraph 1 or 2, or Rule 161, paragraph 1, the applicant may amend the description, claims and drawings of his own volition.
(3)
No further amendment may be made without the consent of the Examining Division. 
(4)
When filing any amendments referred to in paragraphs 1 to 3, the applicant shall identify them and indicate the basis for them in the application as filed. If the Examining Division notes a failure to meet either requirement, it may request the correction of this deficiency within a period of one month.
(5)
Amended claims may not relate to unsearched subject-matter which does not combine with the originally claimed invention or group of inventions to form a single general inventive concept. Nor may they relate to subject-matter not searched in accordance with Rule 62a or Rule 63.
 
See opinion/decision of the Enlarged Board of Appeal G 3/89, G 11/91 (Annex I).
Amended by decision of the Administrative Council CA/D 3/09 of 25.03.2009 (OJ EPO 2009, 299),
entered into force on 01.04.2010. 
References

Art. 90, 92, 94, 123
R. 57, 58, 62, 65, 68, 70, 71, 80, 161

 
Version history +
13.12.2007 - 31.03.2010 
Decision of the Administrative Council of 07.12.2006 (CA/D 10/06), (OJ EPO 2007, 8 and Special edition 1/2007)
01.04.2010 - 
CA/D 3/09 (OJ EPO 2009, 299)
 
Cross-reference list
EPC EPC 1973
R. 137R. 86