Farbwerke Hoechst AG Vormals Meister Lucius and Bruning v Commissioner of Patents

Farbwerke Hoechst AG Vormals Meister Lucius and Bruning (the applicant) sought to appeal a decision of the Commissioner of Patents to the High Court of Australia. The dispute concerned the patentability of a chemical compound, specifically a new process for producing a known substance, which the applicant claimed was an invention. The Commissioner had refused to grant the patent on the grounds that the claimed invention was not a manner of manufacture within the meaning of section 6 of the Statute of Monopolies, and therefore not a patentable invention under the Patents Act 1952 (Cth).

The central legal issue before Gibbs J was whether the applicant's claimed process for producing a known chemical substance constituted a "manner of manufacture" for the purposes of Australian patent law. This required the court to consider the scope and interpretation of this fundamental requirement for patentability, particularly in the context of chemical processes and the production of new substances.

Gibbs J applied the established legal principles governing what constitutes a "manner of manufacture," drawing on precedent from both Australian and English case law. His Honour considered the distinction between a mere discovery or scientific principle and a practical application that produces a useful result. The court reasoned that a process for producing a known substance, even if it involved novel steps or conditions, could be a manner of manufacture if it resulted in a tangible and useful product or improvement. However, the court found that the applicant's claim, as framed, did not sufficiently demonstrate that the process itself was novel or inventive, nor that it produced a new or improved product. The claim was too broad and encompassed the production of the substance by any means, including known ones, thus failing to meet the inventive step requirement and the specific nature of a patentable process.

Consequently, Gibbs J dismissed the appeal, upholding the Commissioner's decision to refuse the grant of the patent.