E05F 3/04 with liquid piston brakes (rotary type E05F3/14)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with liquid piston brakes
CPC: with liquid piston brakes (rotary type E05F3/14)
Full Title
Full titles differ between systems:
Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices > with liquid piston brakes
Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices (construction of non-pneumatic or non-liquid braking devices E05F5/00; friction devices in hinges E05D11/08) > with liquid piston brakes (rotary type E05F3/14)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E05F 3/06 in which a torsion spring rotates a member around an axis perpendicular to the axis of the piston IPC+CPC Available in IPC and CPC
- E05F 3/08 in which a torsion spring rotates a member around an axis arranged in the direction of the axis of the piston IPC+CPC Available in IPC and CPC
- E05F 3/10 with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction +4 CPC IPC+CPC Available in IPC and CPC
- E05F 3/12 Special devices controlling the circulation of the liquid, e.g. valve arrangement (; valves per se F16K) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class E05,2013–2023, worldwide · Source: EPO PATSTAT
- KIEKERT DE 2,762
- HYUNDAI MOTOR COMPANY KR 1,316
- JULIUS BLUM AT 1,088
- FORD GLOBAL TECHNOLOGIES US 1,061
- HAIER SMART HOME 936
- KIA MOTORS CORPORATION KR 909
- HUF HUELSBECK & FUERST & COMPANY DE 887
- LG ELECTRONICS KR 872
- TOKAI RIKA COMPANY 813
- GEZE DE 807
Top Applicants (CPC)
Class E05,2013–2023, worldwide · Source: EPO PATSTAT
- KIEKERT DE 2,802
- HYUNDAI MOTOR COMPANY KR 1,609
- LG ELECTRONICS KR 1,467
- FORD GLOBAL TECHNOLOGIES US 1,465
- JULIUS BLUM AT 1,240
- KIA MOTORS CORPORATION KR 1,164
- HUF HUELSBECK & FUERST & COMPANY DE 1,005
- SAMSUNG ELECTRONICS COMPANY KR 928
- GEZE DE 809
- SCHLAGE LOCK COMPANY US 790