The technology relates to a touch-screen graphical user interface that allows a player to select a game and bet denomination for use in the game.
The patent in question was sought by the gaming company Aristocrat.
The same company obtained a favourable outcome in 2015 as well, when it sued a company named Konami for patent infringement.
"After the RPL and Research Affiliates decisions from the Federal Court, the patent examiners were rejecting inventions relating to the operation of gaming machines," he said.
"The most recent decision of the patent office once again has the operation of gaming machines as being protectable. While it is not open slather, the reasoning used should also provide scope for securing protection for technologies in other segments.
"Another point to note is that while larger companies, with large patent portfolios, have the resources to strongly advance their interests before the Patent Office, that is not usually the case for the smaller software companies. However, there is still the option for those smaller companies to lobby government to best ensure the patent system serves the needs of both large and small."