The requirements to fulfil this ground for patentability has substantially increased in Australia following the “Raising the Bar” legislation of 2013 and has also increased in the USA following recent US Supreme Court decisions.
There are two sides to patent law. The first is to define the scope of the invention in a set of claims and for you to exploit that claimed invention. The second is to maintain others to not infringe your claimed invention and not unfairly benefit from your monopoly to the claimed invention.
This definition of invention and protection of your monopoly of the invention can be seen as analogous to erecting a fence to define your claim and maintaining other parties do not trespass into your fenced area, or if they do, they pay rent for the privilege.
However the fence can only stand for the maximum 20 year monopoly term and then the previously fenced area becomes available for all to use.
Some problems of properly defining your invention can be illustrated by maintaining this analogy. For example:
In the Australian law the test is identified as:
A complete specification must: (a) disclose the invention in a manner which is clear enough and complete enough for the invention to be performed by a person skilled in the relevant art; and (aa) disclose the best method known to the applicant of performing the invention; and (b) where it relates to an application for a standard patent—end with a claim or claims defining the invention; and The claim or claims must be clear and succinct and supported by matter disclosed in the specification.
In the recent US Supreme Court cases the US test is identified as:
A patent is invalid for indefiniteness if its claims, read in light of the specification delineating the patent, and the prosecution history, fail to inform, with reasonable certainty, those skilled in the art [at the time the patent was filed] about the scope of the invention. . . . .
Therefore it is important you hire a good fence maker to define your inventions.
At BaxterIP we have patent attorneys that have fulfilled their apprenticeship in fence building and are experts in fully describing and claiming your inventions.