On Telstra’s opposition to the grant of Amazon’s 1-click patent in Australia, the Commissioner’s delegate has found that:
- claims 1, 2 and 4 to 61 were invalid;
It seems to me that the use to which server generated client identifiers [i.e., cookies] are put in the present invention is both an elegant and inventive way of achieving one action ordering functionality. Therefore I consider that any of the claims having this integer fulfil the requirement of subparagraph 18(1)(b)(ii) of involving an inventive step. These are claims 3 and 62 to 141.
Patentology has a detailed consideration here.
DCC takes a slightly different tack.
Telstra Corporation Limited v Amazon.com, Inc.  APO 28
The specification in AU 762715 (pdf)