for evacuating by absorption or adsorption

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups > for evacuating by absorption or adsorption

CPC:

Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 > for evacuating by absorption or adsorption

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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F04B 37/04 Selection of specific absorption or adsorption materials IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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

LG ELECTRONICS KR 3,855
ROBERT BOSCH DE 3,549
GREE ELECTRIC APPLIANCES 2,273
GE (GENERAL ELECTRIC COMPANY) US 2,126
MITSUBISHI ELECTRIC CORPORATION JP 1,881
UNITED TECHNOLOGIES CORPORATION (UTC) US 1,866
SAFRAN AIRCRAFT ENGINES FR 1,499
MITSUBISHI HEAVY INDUSTRIES JP 1,258
TOYOTA INDUSTRIES CORPORATION JP 1,247
ATLAS COPCO AIRPOWER BE 1,168