[On reform of the international patent classification ].
In this work, the data on reformed IPC are presented. In IPC the core and advanced levels of classification system are used. It is shown that the goal of the IPC reform is to make possible complete search using a single classification edition for all documents, regardless of their publication date.
Nenakhov
G S
GS
Bril'
E M
EM
Shpikalov
A M
AM
D002965:Classification; D007391:International Cooperation; D038622:Internationality; D010330:Patents as Topic