"The implications are significant because ... you can register a shape trademark but you still have to enforce it and it's quite a brave brand owner who does try to enforce it now."
Coke claimed Frucor, which has been bottling Pepsi products in New Zealand since 1999, was in breach of three trademarks by using a similar shaped bottle and was passing it off as a Coke product, breaching fair trading law.
Frucor rejected the claim, saying there were significant differences between the bottles, and that in every case the bottles clearly featured Pepsi's own brands.
Justice Wylie said the primary feature the bottles had in common - a waist - was not sufficient to justify a finding that there was any overall similarity.
"The waists are not the same or even substantially similar," he said.
Given Coke's more than 90 per cent share of the cola market, the judge said it was in a unique position to be able to find out if retailers had been confused by the bottle's shape.
Justice Wylie also questioned why Coke did not complain about the bottle until almost a year after its release, and why it had not taken any steps in other nations where it was sold.
The judge awarded costs to Frucor, and gave the company 15 working days to file a memorandum on costs and disbursements. Coke will get another 15 working days to reply.
A spokesman for Coca-Cola said the company was disappointed by the decision but would not comment further.
- APNZ, with BusinessDesk