Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof

Introduced: January 1980

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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B01J 20/02 comprising inorganic material since 1980 +1 CPC IPC+CPC Available in IPC and CPC
B01J 20/22 comprising organic material since 1980 +1 CPC IPC+CPC Available in IPC and CPC
B01J 20/28 characterised by their form or physical properties since 1980 +3 CPC IPC+CPC Available in IPC and CPC
B01J 20/281 Sorbents specially adapted for preparative, analytical or investigative chromatography since 2006 IPC+CPC Available in IPC and CPC
B01J 20/30 Processes for preparing, regenerating, or reactivating since 1980 +11 CPC IPC+CPC Available in IPC and CPC