CPC Main Group
F01K 1/00 Steam accumulators (use of accumulators in steam engine plants F01K3/00)
7 direct subcodes
Child Classifications
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- F01K 1/02 for storing steam otherwise than in a liquid
- F01K 1/04 for storing steam in a liquid, e.g. Ruth's type (in alkali to increase steam pressure F22B1/20)
- F01K 1/08 Charging or discharging of accumulators with steam (peculiar to multiple accumulators F01K1/12)
- F01K 1/10 specially adapted for superheated steam
- F01K 1/12 Multiple accumulators; Charging, discharging or control specially adapted therefor
- F01K 1/16 Other safety or control means
- F01K 1/20 Other steam-accumulator parts, details, or accessories
Top Applicants
Top 10 applicants by patent filingsfor class F01, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 9,989
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
- SAFRAN AIRCRAFT ENGINES FR 6,248
- HYUNDAI MOTOR COMPANY KR 4,530
- SIEMENS DE 4,461
- FORD GLOBAL TECHNOLOGIES US 4,029
- RAYTHEON TECHNOLOGIES CORPORATION US 3,947
- TOYOTA MOTOR CORPORATION JP 3,734
- GE (GENERAL ELECTRIC COMPANY) 3,415
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063