Standard Patents may last for up to 20 years, subject to payment of renewal fees. A standard patent requires an invention to be novel and "inventive".

Claims and Best Method

An application for a standard application must be accompanied by a "complete" specification. A complete specification differs from a provisional specification in that it must include one or more claims. The claims set out features of the invention for which monopoly is claimed.

Each claim is a single sentence that sets out the essential features. A claim is only infringed if all of the features specified by that claim are found in the allegedly infringing product, system or method etc.

It is a requirement of Australian law that a complete specification must describe 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, including the best method known to the applicant of performing the invention, as at the filing date. If the best method known at the time is not disclosed, then any resulting patent will be invalid.

A complete specification must also be suitable for publication and, accordingly, any drawings need to meet specific requirements. This usually requires that the drawings be drawn by a professional draughtsman.