Gas-filled discharge tubes (heating by discharge H05B)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Gas-filled discharge tubes

CPC: Gas-filled discharge tubes (heating by discharge H05B)

Full Title

Full titles differ between systems:

IPC:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof > Gas-filled discharge tubes

CPC:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof (H01J33/00, H01J40/00, H01J41/00, H01J47/00, H01J49/00 take precedence) > Gas-filled discharge tubes (heating by discharge H05B)

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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H01J 37/32009 +13 CPC CPC only CPC only
H01J 37/32431 +9 CPC CPC only CPC only
H01J 37/32917 +3 CPC CPC only CPC only
H01J 37/34 operating with cathodic sputtering (H01J37/36 takes precedence ) +5 CPC IPC+CPC Available in IPC and CPC
H01J 37/36 for cleaning surfaces while plating with ions of materials introduced into the discharge, e.g. introduced by evaporation since 1980 IPC+CPC Available in IPC and CPC