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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 37/0027 CPC only CPC only
  • E05B 37/0044 CPC only CPC only
  • E05B 37/0062 CPC only CPC only
  • E05B 37/0065 CPC only CPC only
  • E05B 37/0068 CPC only CPC only
  • E05B 37/0072 CPC only CPC only
  • E05B 37/0096 CPC only CPC only
  • 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 37/20 Puzzle locks IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class E05,2013–2023, worldwide · Source: EPO PATSTAT

  1. KIEKERT DE 2,762
  2. HYUNDAI MOTOR COMPANY KR 1,316
  3. JULIUS BLUM AT 1,088
  4. FORD GLOBAL TECHNOLOGIES US 1,061
  5. HAIER SMART HOME 936
  6. KIA MOTORS CORPORATION KR 909
  7. HUF HUELSBECK & FUERST & COMPANY DE 887
  8. LG ELECTRONICS KR 872
  9. TOKAI RIKA COMPANY 813
  10. GEZE DE 807

Top Applicants (CPC)

Class E05,2013–2023, worldwide · Source: EPO PATSTAT

  1. KIEKERT DE 2,802
  2. HYUNDAI MOTOR COMPANY KR 1,609
  3. LG ELECTRONICS KR 1,467
  4. FORD GLOBAL TECHNOLOGIES US 1,465
  5. JULIUS BLUM AT 1,240
  6. KIA MOTORS CORPORATION KR 1,164
  7. HUF HUELSBECK & FUERST & COMPANY DE 1,005
  8. SAMSUNG ELECTRONICS COMPANY KR 928
  9. GEZE DE 809
  10. SCHLAGE LOCK COMPANY US 790