The New Zealand Intellectual Property Office provides an online search of patent cases. This is a highly detailed search with many options available.
Some of the search criteria available include case number, title or abstract, filing and acceptance dates, case status, as well as applicants and inventors names.
Matching results return the case number, title of invention, abstract drawing, priority date, status, owner, abstract and specification.
Selecting a case will provide details of the patent case including bibliographical data, history and documents.