F16F 13/18 characterised by the location or the shape of the equilibration chamber, e.g. the equilibration chamber, surrounding the plastics spring or being annular (F16F13/1418 takes precedence)
Full Title
Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs (F16F5/00, take precedence) > comprising both a plastics spring and a damper, e.g. a friction damper > the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper (F16F13/26 takes precedence) > the plastics spring forming at least a part of the wall of the fluid chamber of the damper (F16F13/20 - F16F13/24 take precedence) > characterised by the location or the shape of the equilibration chamber, e.g. the equilibration chamber, surrounding the plastics spring or being annular (F16F13/1418 takes precedence)
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