Knauf, the German building materials firm, and Fletcher Building, New Zealand's dominant building supplies company, have returned to court for a cross appeal, the latest instalment of their long-running dispute over the use of the word "batts" to describe insulation.
Appearing in the Court of Appeal before Justices Tony Randerson, Christine French and Mark Cooper, the legal counsel for Fletcher's Tasman Insulation subsidiary, Julian Miles QC returned to the argument that Knauf's use of "batt" or "batts" on the packaging of insulation infringed the "Batts" trademark it has held since 1973.
The two building supplies companies are both appealing aspects of Justice Brendan Brown's May 2014 judgment, which refused a request from Knauf to revoke the trademark. In the same judgment, Justice Brown also limited Fletcher's claim of infringement of the trademark to the use of "batt" in the HTML code on the www.earthwool.co.nz website, which sold Knauf insulation, and said the use of the word in the installation instructions on the packaging didn't infringe trademark.
READ MORE:
• Pink Batts scrap heads back to court
Dwarfed by 11-plus boxes of files and three large rolls of Knauf insulation, Miles said the rival company first started importing its insulation into New Zealand in December 2010, originally in clear packaging labelled "loft roll".