G05D 27/00 Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
Introduced: September 1968
Description
G05D27/00 covers the simultaneous control of two or more non-electric variables that individually belong to different main groups of G05D, for example temperature combined with humidity, or flow combined with pressure and level. Typical applications include air-conditioning and climate chambers, chemical and food processing plants, and laundry or dishwashing machines in which several process variables are regulated by one coordinated control scheme. Control of a single variable remains in its own main group, e.g. G05D23/00 for temperature or G05D7/00 for flow.
Title
Titles differ between systems:
IPC: Simultaneous control of variables covered by two or more of main groups
CPC: Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
Full Title
Full titles differ between systems:
Simultaneous control of variables covered by two or more of main groups
Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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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