Patent Classification Explorer PCE

DIFF Main Group

F24D 17/00

Domestic hot-water supply systems

Introduced: September 1968

CPC subdivides this area 9x more granularly than IPC with 8 additional codes.

8 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

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F24D 17/0005 +1 CPC CPC only CPC only
F24D 17/0015 +1 CPC CPC only CPC only
F24D 17/0026 +1 CPC CPC only CPC only
F24D 17/0036 +3 CPC CPC only CPC only
F24D 17/0073 CPC only CPC only
F24D 17/0078 +1 CPC CPC only CPC only
F24D 17/0089 CPC only CPC only
F24D 17/0094 CPC only CPC only
F24D 17/02 using heat pumps since 1990 IPC+CPC Available in IPC and CPC