Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
F02C 9/50

with control of working fluid flow

Full Title

Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants (controlling air intakes F02C7/057; controlling turbines F01D; controlling compressors F04D27/00; controlling in general G05) > Control of fuel supply conjointly with another control of the plant (with nozzle section control F02K1/17) > with control of working fluid flow

Filing statistics

CPC F02C 9/50 belongs to the parent subclass F02C, which recorded 72,456 patent applications worldwide between 2013 and 2023. Annual filings declined from 6,952 in 2013 to 5,433 in 2023 (-22%), peaking at 7,765 applications in 2016. The most active applicants in class F02 are ROBERT BOSCH (8,801 applications), FORD GLOBAL TECHNOLOGIES (8,171 applications) and GE (GENERAL ELECTRIC COMPANY) (6,957 applications).

Source: EPO PATSTAT, worldwide filings

2 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • F02C 9/52 by bleeding or by-passing the working fluid
  • F02C 9/54 by throttling the working fluid, by adjusting vanes

Top Applicants

Top 10 applicants by patent filingsfor class F02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ROBERT BOSCH DE 8,801
  2. FORD GLOBAL TECHNOLOGIES US 8,171
  3. GE (GENERAL ELECTRIC COMPANY) US 6,957
  4. HYUNDAI MOTOR COMPANY KR 5,390
  5. UNITED TECHNOLOGIES CORPORATION (UTC) US 5,250
  6. TOYOTA MOTOR CORPORATION JP 5,214
  7. TOYOTA MOTOR CORPORATION 4,149
  8. DENSO CORPORATION JP 3,400
  9. KIA MOTORS CORPORATION KR 3,388
  10. SAFRAN AIRCRAFT ENGINES FR 3,332