having plate-like flexible members, e.g. diaphragms (F04B43/14 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: having plate-like flexible members, e.g. diaphragms

CPC: having plate-like flexible members, e.g. diaphragms (F04B43/14 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Machines, pumps, or pumping installations having flexible working members > having plate-like flexible members, e.g. diaphragms

CPC:

Machines, pumps, or pumping installations having flexible working members (pumps or pumping installations specially adapted for elastic fluids F04B45/00) > having plate-like flexible members, e.g. diaphragms (F04B43/14 takes precedence)

CPC subdivides this area 3x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open

F04B 43/021 CPC only CPC only
F04B 43/023 CPC only CPC only
F04B 43/025 +1 CPC CPC only CPC only
F04B 43/028 CPC only CPC only
F04B 43/04 Pumps having electric drive +1 CPC IPC+CPC Available in IPC and CPC
F04B 43/06 Pumps having fluid drive 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