CLR II E 1.12.1 Calculation errors

CLR II E 1.12 Errors in the disclosure

1.12.1 Calculation errors

1.12.2 Incorrect structural formula

1.12.3 Amendment based on erroneous figure in the disclosure

CLR II E 1.11.9 Characteristic described for intermediate product added to the claimed end product

CLR II E 1.11.8 Insertion of an ambiguous feature in the claim

CLR II E 1.11.7 Addition/change of claim category

CLR II E 1.11.6 Addition of advantages and effects to the description

CLR II E 1.11.5 Adding prior art citations to the description

CLR II E 1.11.4 Addition to the claim of features previously described as non-essential

CLR II E 1.11.3 Addition to the claim of features originally presented as prior art

In T 912/08 the board held that an amendment that resulted in features originally presented as part of the prior art, being then presented as the invention could be damaging to the legal security of third parties relying on the content of the original application and added subject-matter contrary to Art. 123(2) EPC.

CLR II E 1.11.2 Addition to the claim of an isolated feature taken from description

For examples concerning the insertion of an isolated feature to the claim taken from the description, see above in this chapter II.E.1.9. "Intermediate generalisations.

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