In-text Citation
Karthikeyan, Langmaid, Reed, and Ryan (2007) placed a patent...
Reference List
Karthikeyan, R., Langmaid, R.R., Reed, R.J & Ryan, R.G. 2007, Library label and a storage system, Australian Patent 2007262658.
Use the name/s of the inventors as the author's name. The year is the year that the patent was filed.