The following document kinds have been allocated to Australian patent specifications published after 17 December 1998:
A1 - OPI Document (standard and petty patent applications)
A2 - Amended OPI Document (standard and petty patent applications)
A4 - Granted/OPI Innovation Patent
A5 - Pre-Grant/OPI Innovation Patent
A6 - Amended After Grant Innovation Patent
A8 - Corrected Document (bibliographic data A1-A5)
A9 - Corrected Document (complete reprint A1-A5)
B1 - Accepted Standard - OPI at Acceptance
B2 - Accepted Standard - previously OPI
B3 - Granted Petty irrespective of whether previously OPI or not
B4 - Certified Innovation Patent (following an A4 or A5 document kind)
B8 - Corrected Document (bibliographic data B1-B4)
B9 - Corrected Document (complete reprint B1-B4)
C - Amended after Acceptance/Grant or further amended after Acceptance/Grant of a Standard or Petty Patent that were filed prior to 5 July 2002 and includes all PCT applications that entered the national phase prior to 8 August 2002
C1 - Amended after Acceptance/Grant or further amended after Acceptance/Grant of a Standard Patent
C4 - Amended after Certification or further amended after Certification of an Innovation Patent
C8 - Corrected Document (bibliographic data C1-C4)
C9 - Corrected Document (complete reprint C1-C4)
Note: Specifications published before 17 December 1998 will have a document kind of "A", "B" or "C" in any XML data. A two character document kind code of "A0", "B0" or "C0" will be used in corresponding file names for these specifications.