The Australian Patents Act 1990 requires, in section 18(1)(c) and 18(1A)(c), that an invention must be ‘useful’ in order to be patentable. This is also commonly known as the requirement for ‘utility’. Failure to meet this requirement, i.e. inutility, is therefore a ground upon which a patent application may be rejected, or a patent revoked.
A number of ‘rules’ have been developed by the courts over the years for assessing utility. These were succinctly summarised by Justice Beach in Streetworx Pty Ltd v Artcraft Urban Group Pty Ltd [2014] FCA 1366 (a decision that was upheld on appeal) in the form of three questions:
One aspect of the utility requirement that has perhaps been less consistently addressed is whether, if a patent applicant makes multiple promises for an invention, it is necessary that all of those promises be met by every claim. For example, suppose a patent is directed to bionic implants promises to create a human cyborg that is better, stronger and faster than the original. Is a claim for a bionic eye invalid because it only achieves one of these three objectives?
In practice, it is not uncommon for patent specifications – particularly those drafted primarily with the US in mind – to include multiple ‘object’ statements, without a necessary expectation that each and every claim satisfies each and every stated object. It is a common practice of Australian patent attorneys to amend such statements in order to moderate the promises being made such that, for example, no more than some substantive progress towards achieving at least one of the desired benefits is asserted.
It should, in fact, be the standard practice of all Australian patent attorneys to do this, as a recent Federal Court judgment demonstrates. In Ronneby Road Pty Ltd v ESCO Corporation [2016] FCA 588, Justice Jessup found all claims of an opposed patent application to be invalid for lack of utility because none would deliver each and every one of six advantages listed in the specification, notwithstanding that a number of the claims would deliver one or more of those stated advantages.
A number of ‘rules’ have been developed by the courts over the years for assessing utility. These were succinctly summarised by Justice Beach in Streetworx Pty Ltd v Artcraft Urban Group Pty Ltd [2014] FCA 1366 (a decision that was upheld on appeal) in the form of three questions:
- What has the patentee promised for the invention as described in the relevant claim?
- Is the promise useful?
- Has that promise been met?
One aspect of the utility requirement that has perhaps been less consistently addressed is whether, if a patent applicant makes multiple promises for an invention, it is necessary that all of those promises be met by every claim. For example, suppose a patent is directed to bionic implants promises to create a human cyborg that is better, stronger and faster than the original. Is a claim for a bionic eye invalid because it only achieves one of these three objectives?
In practice, it is not uncommon for patent specifications – particularly those drafted primarily with the US in mind – to include multiple ‘object’ statements, without a necessary expectation that each and every claim satisfies each and every stated object. It is a common practice of Australian patent attorneys to amend such statements in order to moderate the promises being made such that, for example, no more than some substantive progress towards achieving at least one of the desired benefits is asserted.
It should, in fact, be the standard practice of all Australian patent attorneys to do this, as a recent Federal Court judgment demonstrates. In Ronneby Road Pty Ltd v ESCO Corporation [2016] FCA 588, Justice Jessup found all claims of an opposed patent application to be invalid for lack of utility because none would deliver each and every one of six advantages listed in the specification, notwithstanding that a number of the claims would deliver one or more of those stated advantages.