International Patent Classification 2011
15 December 2010
The International Patent Classification (IPC) version 2011.01 comes into force on 1 January 2011.
IPONZ examiners will be using the new version for classifying applications accepted and published in Patent Office Journal 1579 of January 2011 onwards.
Searching published patents.
Patents applied for prior to 1 January 2011 are not automatically reclassified, may retain retired IPC symbols, and may not include symbols introduced in the new version. When searching for a patent, IPONZ recommends that you use symbols from both the current and earlier versions of the IPC for a complete search.