An Australian Patent Opposition Round-Up from the Patent Office Journal dated 5 April 2012.
No patent applications were opposed as at 5 April 2012.
There were no applications for Extension of Patent Term accepted under Section 74 as at 5 April 2012.
Opposition proceedings to the following patent applications have been withdrawn as at 5 April 2012.
| Patent Application No. | Applicant | Opponent |
| 2005244261 | Abbott Biotechnology Ltd | Alphapharm Pty Ltd |
| 2008202001 | Abbott Biotechnology Ltd | Alphapharm Pty Ltd |