Rimfrost AS v Aker BioMarine Antarctic AS

In the case of Rimfrost AS v Aker BioMarine Antarctic AS, the dispute involved patent claims related to the extraction of oil from krill. The matter was heard by the Federal Court of Australia, where the primary issue was whether the patent claims were valid and enforceable. Specifically, the court needed to determine whether the claimed process for extracting krill oil was novel and non-obvious over the common general knowledge (CGK) at the priority date. This required an examination of the technical background and the state of the art in the field of krill oil extraction as of August 29, 2007.

The court undertook a detailed analysis of the prior art, including the Grantham article, to establish what was known in the industry. It examined the composition of krill and the methods of extracting oil from it, which were considered part of the CGK. The court also assessed the claims in light of the evidence presented by Professor Barrow, who provided insights into the common knowledge in the field. The central legal issue was whether the claimed process met the criteria for patentability, namely whether it was novel and involved an inventive step. The court had to decide if the claimed method represented an advancement over the existing techniques described in the CGK.

In its reasoning, the court found that the processes described in the patent claims were indeed novel and involved an inventive step. It concluded that the claimed methods, which involved heating krill, separating the resulting fractions, and extracting oil, were not anticipated by the CGK. The court detailed the specific steps in the claimed processes and compared them to the prior art, finding that the claimed methods introduced a distinct approach to krill oil extraction. Consequently, the court held that the patent claims were valid and enforceable.

The final orders of the court affirmed the validity and enforceability of the patent claims in question, dismissing the challenge brought by the defendant. This decision upheld the rights of the patent holder and confirmed the patentability of the claimed process for extracting oil from krill.