the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule

Introduced: September 1968

Title

Titles differ between systems:

IPC: the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule

CPC: the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule

Full Title

Full titles differ between systems:

IPC:

Control of fluid pressure > without auxiliary power > the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule

CPC:

Control of fluid pressure > without auxiliary power > the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule

CPC subdivides this area 5x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

Child Classifications

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G05D 16/0608 CPC only CPC only
G05D 16/0611 +1 CPC CPC only CPC only
G05D 16/0616 +2 CPC CPC only CPC only
G05D 16/063 +5 CPC CPC only CPC only
G05D 16/08 Control of liquid pressure IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G05,2013–2023, worldwide · Source: EPO PATSTAT

SIEMENS DE 4,725
SGCC(STATE GRID CORPORATION OF CHINA) 4,571
FANUC JP 4,233
MITSUBISHI ELECTRIC CORPORATION JP 3,143
FANUC 2,981
ROBERT BOSCH DE 2,813
CHINESE ACADEMY OF SCIENCES 2,500
LG ELECTRONICS KR 2,182
OMRON CORPORATION JP 2,036
SAMSUNG ELECTRONICS COMPANY KR 1,981

Top Applicants (CPC)

Class G05,2013–2023, worldwide · Source: EPO PATSTAT

FANUC JP 6,367
SIEMENS DE 5,963
FANUC 4,535
MITSUBISHI ELECTRIC CORPORATION JP 4,201
ROBERT BOSCH DE 4,010
LG ELECTRONICS KR 3,802
SAMSUNG ELECTRONICS COMPANY KR 3,143
FORD GLOBAL TECHNOLOGIES US 2,889
TOYOTA MOTOR CORPORATION 2,778
OMRON CORPORATION JP 2,743