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CPC Main Group
F02K 9/00

Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof

Filing statistics

CPC F02K 9/00 belongs to the parent subclass F02K, which recorded 24,838 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,984 in 2013 to 2,058 in 2023 (+4%), peaking at 2,809 applications in 2019. 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

10 direct subcodes

Child Classifications

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  • F02K 9/70 using semi- solid or pulverulent propellants
  • F02K 9/72 using liquid and solid propellants, i.e. hybrid rocket-engine plants
  • F02K 9/94 Re-ignitable or restartable rocket- engine plants; Intermittently operated rocket-engine plants
  • F02K 9/95 characterised by starting or ignition means or arrangements (safety devices F02K9/38)
  • F02K 9/96 characterised by specially adapted arrangements for testing or measuring

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