by powder metallurgy (C22C1/08 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: by powder metallurgy

CPC: by powder metallurgy (C22C1/08 takes precedence)

Full titles differ between systems:

IPC:

Making non-ferrous alloys > by powder metallurgy

CPC:

Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36) > by powder metallurgy (C22C1/08 takes precedence)

CPC subdivides this area 5x more granularly than IPC with 7 additional codes.

7 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Navigate with arrow keys, Enter to open

C22C 1/0408 +1 CPC CPC only CPC only
C22C 1/0425 CPC only CPC only
C22C 1/0433 +1 CPC CPC only CPC only
C22C 1/045 +1 CPC CPC only CPC only
C22C 1/0466 CPC only CPC only
C22C 1/047 comprising intermetallic compounds since 2023 IPC+CPC Available in IPC and CPC
C22C 1/0475 CPC only CPC only
C22C 1/0483 CPC only CPC only
C22C 1/05 Mixtures of metal powder with non-metallic powder (C22C1/08 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC

Class C22,2013–2023, worldwide · Source: EPO PATSTAT

Class C22,2013–2023, worldwide · Source: EPO PATSTAT