E05 LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
Description
Class E05 covers mechanical locking devices, key mechanisms, and hardware for securing doors and windows, as well as security containers. This includes padlocks, cylinder locks, mortise locks, latches, bolts, hinges, handles, and related fastening components for building access control. The class also encompasses safes, strong boxes, and other protective enclosures designed to prevent unauthorized entry or theft. Associated technologies such as key blanks, lock springs, and strike plates fall within this scope, though electronic locking systems are typically classified elsewhere.
Filing statistics
CPC E05 recorded 271,184 patent applications worldwide between 2013 and 2023, summed across its 6 subclasses. Annual filings grew from 18,404 in 2013 to 19,034 in 2023 (+3%), peaking at 33,495 applications in 2018. The most active applicants in class E05 are KIEKERT (2,802 applications), HYUNDAI MOTOR COMPANY (1,609 applications) and LG ELECTRONICS (1,467 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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- E05B LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05C BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS (latching means for sideboard or tailgate structures for vehicles B62D, ; fastening devices for constructional or engineering elements E04, F16B; locks, fastening devices structurally or operatively combined or having significant cooperation with locks E05B; means for operating or controlling wing fasteners in conjunction with mechanisms for moving the wing E05F)
- E05D HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00)
- E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05G SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS ( alarm arrangements per se G08B)
- E05Y INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
Top Applicants
Top 10 applicants by patent filings, 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