In New Zealand under the Patents Act 2013, amendments after a patent application is accepted or granted by the Intellectual Property Office of New Zealand (IPONZ) are limited compared to amendments allowable before acceptance.
Before acceptance, any amendment is allowable provided it is supported by the application as filed. After acceptance or grant, amendments of complete patent specifications are only allowable if:
- they are supported (i.e. the subject matter of the proposed amendment is claimed or described in the specification before amendment); and
- for claim amendments, are narrowing (i.e. any amended claim falls wholly within the scope of claim before amendment). Read more