The Court of Appeal has upheld the High Court’s finding that the term “batts” had not become a common name in general public use. See http://www.nzherald.co.nz/business/news/article.cfm?c_id=3&objectid=11562097

However, it confirmed that the defendant, Knauf’s use of the word “batts” on its product packaging was not an infringement and reversed the earlier finding that use of “batts” on Knauf’s website infringed Tasman’s trade mark registration for BATTS. http://www.nzlii.org/nz/cases/NZCA/2015/602.html