DIFF Main Group
E05B 37/00 Permutation locks ( electric permutation locks E05B49/00); Puzzle locks
Introduced: September 1968
Title
Titles differ between systems:
IPC: Permutation locks; Puzzle locks
CPC: Permutation locks ( electric permutation locks E05B49/00); Puzzle locks
Full Title
Full titles differ between systems:
IPC:
Permutation locks; Puzzle locks
CPC:
Permutation locks ( electric permutation locks E05B49/00); Puzzle locks
Additional Content IPC
Limiting references
Electric permutation locks
Application references
Permutation locks for bicycles
CPC subdivides this area 3x more granularly than IPC with 11 additional codes.
11 codes are CPC-only extensions.
Child Classifications
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- E05B 37/02 with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others +1 CPC IPC+CPC Available in IPC and CPC
- E05B 37/04 with tumbler discs on a single axis, all the discs being adjustable by rotating a shiftable knob IPC+CPC Available in IPC and CPC
- E05B 37/08 with tumbler discs on a single axis, all the discs being adjustable by a rotary knob which is not shifted IPC+CPC Available in IPC and CPC
- E05B 37/16 with two or more push or pull knobs, slides, or the like +2 CPC −1 IPC 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