Methods of underground or surface mining (E21C45/00 takes precedence); Layouts therefor (for peat E21C49/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Methods of underground or surface mining; Layouts therefor

CPC: Methods of underground or surface mining (E21C45/00 takes precedence); Layouts therefor (for peat E21C49/00)

Full titles differ between systems:

IPC:

Methods of underground or surface mining; Layouts therefor

CPC:

Methods of underground or surface mining (E21C45/00 takes precedence); Layouts therefor (for peat E21C49/00)

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

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E21C 41/16 Methods of underground mining (winning machines therefor E21C25/00 - E21C39/00); Layouts therefor since 1990 IPC+CPC Available in IPC and CPC
E21C 41/26 Methods of surface mining (machines for obtaining, or the removal of, materials in open-pit mines E21C47/00); Layouts therefor since 1990 +1 CPC IPC+CPC Available in IPC and CPC
E21C 41/32 Reclamation of surface-mined areas (machines or methods for treating or working soil for agricultural purposes A01B77/00, A01B79/00; machines for back-filling E02F5/22) since 1990 IPC+CPC Available in IPC and CPC

Class E21,2013–2023, worldwide · Source: EPO PATSTAT

Class E21,2013–2023, worldwide · Source: EPO PATSTAT