Patent Classification Explorer PCE

DIFF Main Group

H05B 31/00

Electric arc lamps (regulating electric characteristics of arcs G05F1/02)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Electric arc lamps

CPC: Electric arc lamps (regulating electric characteristics of arcs G05F1/02)

Full Title

Full titles differ between systems:

IPC:

Electric arc lamps

CPC:

Electric arc lamps (regulating electric characteristics of arcs G05F1/02)

CPC subdivides this area 2x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

Child Classifications

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H05B 31/0003 +4 CPC CPC only CPC only
H05B 31/0018 +3 CPC CPC only CPC only
H05B 31/003 +3 CPC CPC only CPC only
H05B 31/0042 +4 CPC CPC only CPC only
H05B 31/0057 +7 CPC CPC only CPC only
H05B 31/0081 +5 CPC CPC only CPC only
H05B 31/02 Details IPC+CPC Available in IPC and CPC
H05B 31/36 having two electrodes in line IPC+CPC Available in IPC and CPC
H05B 31/40 having two electrodes at an angle IPC+CPC Available in IPC and CPC
H05B 31/44 having two parallel electrodes IPC+CPC Available in IPC and CPC
H05B 31/48 having more than two electrodes IPC+CPC Available in IPC and CPC