F16H 33/08 based essentially on inertia
Full Title
Gearings based on repeated accumulation and delivery of energy > Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels > Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought > based essentially on inertia
Filing statistics
CPC F16H 33/08 belongs to the parent subclass F16H, which recorded 198,748 patent applications worldwide between 2013 and 2023. Annual filings declined from 16,136 in 2013 to 13,125 in 2023 (-19%), peaking at 22,214 applications in 2017. The most active applicants in class F16 are SCHAEFFLER TECHNOLOGIES & COMPANY (22,817 applications), ZAHNRADFABRIK FRIEDRICHSHAFEN (10,523 applications) and HYUNDAI MOTOR COMPANY (7,933 applications).
Source: EPO PATSTAT, worldwide filings
3 direct subcodes
Child Classifications
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- F16H 33/10 with gyroscopic action, e.g. comprising wobble-plates, oblique cranks
- F16H 33/12 with a driving member connected differentially with both a driven member and an oscillatory member with large resistance to movement, e.g. Constantinesco gearing
- F16H 33/14 having orbital members influenced by regulating masses
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