Control, e.g. regulation, of pumps, pumping installations or systems

Introduced: September 1968

Title

Titles differ between systems:

IPC: Control, e.g. regulation, of pumps, pumping installations, or systems

CPC: Control, e.g. regulation, of pumps, pumping installations or systems

Full titles differ between systems:

IPC:

Control, e.g. regulation, of pumps, pumping installations, or systems

CPC:

Control, e.g. regulation, of pumps, pumping installations or systems

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

8 codes are CPC-only extensions.

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F04D 15/0005 +3 CPC CPC only CPC only
F04D 15/0027 +4 CPC CPC only CPC only
F04D 15/0055 +1 CPC CPC only CPC only
F04D 15/0066 CPC only CPC only
F04D 15/0072 CPC only CPC only
F04D 15/0077 +1 CPC CPC only CPC only
F04D 15/0088 CPC only CPC only
F04D 15/0094 CPC only CPC only
F04D 15/02 Stopping of pumps, or operating valves, on occurrence of unwanted conditions +4 CPC IPC+CPC Available in IPC and CPC

Class F04,2013–2023, worldwide · Source: EPO PATSTAT

GREE ELECTRIC APPLIANCES 5,351
LG ELECTRONICS KR 3,502
ROBERT BOSCH DE 3,011
MIDEA 2,258
MITSUBISHI ELECTRIC CORPORATION JP 1,663
ZHUHAI LANDA COMPRESSOR COMPANY 1,639
GREE ELECTRIC APPLIANCES, INC.OF ZHUHAI 1,573
ZHUHAI GREE ENERGY-SAVING REFRIGERATION TECHNOLOGY RESEARCH CENTER COMPANY 1,536
TOYOTA INDUSTRIES CORPORATION 1,347
DAIKIN INDUSTRIES 1,325

Class F04,2013–2023, worldwide · Source: EPO PATSTAT