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CPC Subgroup
F23C 10/30

for controlling the level of the bed or the amount of material in the bed

Full Title

Fluidised bed combustion apparatus > Details; Accessories > Control devices specially adapted for fluidised bed, combustion apparatus > for controlling the level of the bed or the amount of material in the bed

1 direct subcode

Child Classifications

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  • F23C 10/32 by controlling the rate of recirculation of particles separated from the flue gases

Top Applicants

Top 10 applicants by patent filingsfor class F23, 2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 2,581
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 1,180
  3. SIEMENS DE 1,157
  4. GE (GENERAL ELECTRIC COMPANY) 994
  5. XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 769
  6. MITSUBISHI HEAVY INDUSTRIES JP 701
  7. MITSUBISHI HITACHI POWER SYSTEMS JP 695
  8. RAYTHEON TECHNOLOGIES CORPORATION US 587
  9. NINGBO FOTILE KITCHENWARE COMPANY 543
  10. GENERAL ELECTRIC TECHNOLOGY CH 490