See this example properly formatted in the QUT Cite tool.
Standard in-text citation examples are in Getting started - In-text citation.
Author. Title. Patent Number, filed Month Day, Year, and issued Month Day, Year. http://www.xxxxxx.
Pule, Martin and Paul Maciocia. Chimeric Antigen Receptor (CAR) with antigen binding domains to the T Cell receptor beta constant region. Australian Patent 2019204925, filed July 25, 2019 and issued June 17, 2021. https://pericles.ipaustralia.gov.au/ols/auspat/applicationDetails.do?applicationNo=2019204925.
Author. Title. Patent Number, filed Month Day, Year, and issued Month Day, Year.
Petroff, Michael D. and Maryn G. Stapelbroek. Blocked impurity band detectors. US Patent 4,586,960, filed October 23, 1980, and issued February 4, 1986.
The names of the creators are used as the authors.
The year of filing is used as the year of publication in in-text citations.
If you cannot identify the date of filing or the issue date, omit this from your reference.
The title is not italicised.