F04B 1/30 of machines or pumps with rotary cylinder blocks
Introduced: September 1968
Full Title
Full titles differ between systems:
Multi-cylinder machines or pumps characterised by number or arrangement of cylinders > having cylinder axes coaxial with, or parallel or inclined to, main shaft axis > Control > of machines or pumps with rotary cylinder blocks
Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (machines or pumps with pistons coacting within one cylinder F04B3/00) > having cylinder axes coaxial with, or parallel or inclined to, main shaft axis > Control > of machines or pumps with rotary cylinder blocks
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 1995.
Child Classifications
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- F04B 1/306 by turning the swash plate, e.g. with fixed inclination since 2020 IPC+CPC Available in IPC and CPC
- F04B 1/32 by varying the relative positions of a swash plate and a cylinder block since 1995 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