CPC Subgroup
F16L 53/35 Ohmic-resistance heating
Full Title
Heating of pipes or pipe systems; Cooling of pipes or pipe systems > Heating of pipes or pipe systems > Ohmic-resistance heating
2 direct subcodes
Child Classifications
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- F16L 53/37 the heating current flowing directly through the pipe to be heated
- F16L 53/38 using elongate electric heating elements, e.g. wires or ribbons
Top Applicants
Top 10 applicants by patent filingsfor class F16, 2013–2023, worldwide · Source: EPO PATSTAT
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
- ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
- HYUNDAI MOTOR COMPANY KR 7,933
- ROBERT BOSCH DE 7,059
- KIA MOTORS CORPORATION KR 4,867
- SKF SE 4,729
- TOYOTA MOTOR CORPORATION JP 4,111
- FORD GLOBAL TECHNOLOGIES US 3,838
- GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
- TOYOTA MOTOR CORPORATION 3,499