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Utility models - utility models classification


ikonka klasyfikacji

  • International Patent Classification
    The International Patent Classification (IPC), established by the Strasbourg Agreement 1971, provides for a hierarchical system of language independent symbols for the classification of patents and utility models according to the different areas of technology to which they pertain.

    The organisation responsible for the IPC is the World Intellectual Property Organization (WIPO) based in Geneva.

    The International Patent Classification (IPC), being a means for obtaining an internationally uniform classification of utility models documents.
    The Classification has been periodically revised in order to improve the system and to take account of technical development. The first edition of the Classification was in force from September 1, 1968 to June 30, 1974,
    - the second from July 1, 1974 to December 31, 1979,
    - the third from January 1, 1980 to December 31, 1984,
    - the fourth from January 1, 1985 to December 31, 1989,
    - the fifth from January 1, 1990 to December 31, 1994,
    - the sixth from January 1, 1995 to December 31, 1999,
    - the seventh from January 1, 2000 to December 31, 2005,
    more...

  • European Classification System (ECLA)
  • Cooperative Patent Classification (CPC) is an extension of the IPC and is jointly managed by the EPO and the US Patent and Trademark Office.
  • United States Patent Classification (USPC)
  • FI (Classification) - Japanese Patent Classification


The IPC is continuously revised and a new version is regularly published in English and French. Translations of the IPC are also prepared and published in other languages for example in Polish

more about IPC (MPK)...


The IPC symbol
A complete classification symbol comprises the combined symbols representing
the section, class, subclass and main group or subgroup.
 example.: E21B 43/00 or 43/20

 E - section, 21 - class, B - subclass, (43/00 - main group, 43/20 - subgroup) - group



The hierarchical structure E21B 43/00 or 43/20: is shown in the following example:
E - FIXED CONSTRUCTIONS
E21 - EARTH OR ROCK DRILLING; MINING
E21B - EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS
OR A SLURRY OF MINERALS FROM WELLS
E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
E21B 43/00 lub 43/20 - Displacing by water


The IPC (International Patent Classification) is one of the most important tools available to people who want to search utility models databases.
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