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DIFF Main Group
G05D 23/00

Control of temperature

Introduced: September 1968

Additional Content IPC

Means for regulating the temperature of bakers' ovens Devices for controlling the temperature of hair curlers Control devices for metal extruding, e.g. for regulating temperature of metal Temperature control means for lapping machines or devices Devices for controlling tyre temperature Arrangements for controlling temperature of cosmonautic vehicles Controlling the temperature of the float baths or of the atmosphere above the float baths in glass making , Control of temperature in the treatment of filament-forming or like material Devices for controlling temperature of parts of knitting machines Temperature control of hand irons Regulating temperature of the dryer section in paper-making machines Controlling temperature of lubricants Controlling the supplying oil or unspecified lubricant from a reservoir by means of temperature Controlling superheat temperature for superheating of steam Control of temperature in arrangements for supplying or controlling air or other gases for drying solid materials or objects Control of temperature of fluid carrier in chemical analysis Temperature of electric storage cells Control of temperature in dielectric, induction or microwave heating , , Controlling the temperature of anode of X-ray tubes

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

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Top Applicants

Top Applicants (IPC)

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

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

Top Applicants (CPC)

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

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