Actavis Pty Ltd v Orion Corporation

In Actavis Pty Ltd v Orion Corporation, the Federal Court of Australia considered appeals concerning patent validity, infringement, and standing. The primary dispute involved the validity of certain claims in a patent related to a pharmaceutical composition and method. The appeals also addressed the standing of various parties to sue for infringement and the revocation of the patent. The court was required to determine whether the relevant claims were fairly based on the matter described in the specification and whether they were clear. Additionally, the court had to decide on the standing of the parties involved, including whether the second respondent was an exclusive licensee and whether the third respondent had standing to sue for infringement and was a proper party to the cross-claim for revocation.

The court found that the primary judge's conclusion that the impugned claims were fairly based on the matter described in the specification was correct. The court emphasized that the invention described in the specification was a new, oral solid fixed dose composition comprising specific pharmacologically effective amounts of entacapone, levodopa, and carbidopa with at least one pharmaceutically effective excipient. The court noted that the description of preferable stability and bioavailability characteristics and ease of swallowing were best understood as referring to embodiments of the invention rather than essential features. The court also held that the respondents had standing to sue for infringement and that the third respondent was a proper party to the cross-claim for revocation. The court allowed certain grounds of appeal and dismissed the rest, leading to variations in the orders concerning the standing of the parties to sue for infringement and the revocation of the patent.

The court ordered that the parties attempt to agree on the orders that would give effect to the reasons for judgment, including the question of costs. If the parties could not agree, they were to provide drafts of the orders they proposed, supported by written submissions. The court also ordered that certain paragraphs of the reasons for judgment be kept confidential to prevent prejudice to the proper administration of justice. The court noted that the confidentiality orders were necessary to ensure fair proceedings.