F16H GEARING
Introduced: September 1968
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- Subclass:
- GEARING
Description
F16H covers mechanical power transmission systems that transmit motion and torque between rotating shafts through direct contact of teeth, friction surfaces, or flexible elements. This subclass encompasses gear types including spur gears, helical gears, bevel gears, worm gears, and rack-and-pinion systems, as well as non-toothed alternatives such as friction wheels and belt/chain drives. The classification includes gear design, manufacture, lubrication, efficiency optimization, and integrated transmission assemblies across applications ranging from automotive and industrial machinery to household appliances. Related noise reduction, vibration damping, and gear material specifications are covered within this subclass.
Filing statistics
IPC subclass F16H recorded 293,953 patent applications worldwide between 2013 and 2023. Annual filings grew from 22,485 in 2013 to 25,039 in 2023 (+11%), peaking at 30,138 applications in 2020. The most active applicants in class F16 are SCHAEFFLER TECHNOLOGIES & COMPANY (21,545 applications), ZAHNRADFABRIK FRIEDRICHSHAFEN (9,446 applications) and TOYOTA MOTOR CORPORATION (7,215 applications).
Source: EPO PATSTAT, worldwide filings
Additional Content
Varying the speed ratio of driving or feeding mechanisms of machine tools , Conjoint control of drive units for vehicles Cycle transmissions Marine propulsion
Related Keywords
30 direct subcodes
Child Classifications
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- F16H 1/00 Toothed gearings for conveying rotary motion
- F16H 13/00 Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
- F16H 15/00 Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H 19/00 Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H 21/00 Gearings comprising primarily only links or levers, with or without slides
- F16H 23/00 Wobble-plate gearings; Oblique-crank gearings
- F16H 25/00 Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H 27/00 Step-by-step mechanisms without freewheel members, e.g. Geneva drives
- F16H 29/00 Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
- F16H 3/00 Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H 31/00 Other gearings with freewheeling members or other intermittently-driving members
- F16H 33/00 Gearings based on repeated accumulation and delivery of energy
- F16H 35/00 Gearings or mechanisms with other special functional features
- F16H 37/00 Combinations of mechanical gearings, not provided for in groups
- F16H 39/00 Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
- F16H 41/00 Rotary fluid gearing of the hydrokinetic type
- F16H 43/00 Other fluid gearing, e.g. with oscillating input or output
- F16H 45/00 Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H 47/00 Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H 48/00 Differential gearings
Top Applicants
Top 10 applicants by patent filingsfor class F16, 2013–2023, worldwide · Source: EPO PATSTAT
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 21,545
- ZAHNRADFABRIK FRIEDRICHSHAFEN DE 9,446
- TOYOTA MOTOR CORPORATION 7,215
- HYUNDAI MOTOR COMPANY KR 6,846
- ROBERT BOSCH DE 6,106
- NTN CORPORATION 5,305
- SKF SE 4,219
- KIA MOTORS CORPORATION KR 3,852
- NSK 3,850
- HONDA MOTOR COMPANY 3,639