IPC Subgroup
E06C 1/28 multi-part
Introduced: September 1968
Last revised: January 2006
Full Title
Ladders in general > with rigid longitudinal member or members > Ladders capable of standing by themselves > Free-standing ladders > multi-part
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS
- Subclass:
- LADDERS
1 direct subcode
Child Classifications
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- E06C 1/3 extensible, e.g. telescopic
Top Applicants
Top 10 applicants by patent filingsfor class E06, 2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 1,398
- YKK AP 1,252
- LIXIL CORPORATION 1,235
- SAINT-GOBAIN GLASS FR 1,133
- BUNKA SHUTTER COMPANY 839
- HUNTER DOUGLAS US 812
- SANKYOTATEYAMA 796
- SANWA SHUTTER CORPORATION 699
- VKR HOLDING DK 579
- VIEW US 557