E06C 1/38 Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
Introduced: September 1968
Full Title
Full titles differ between systems:
Ladders in general > with rigid longitudinal member or members > Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
Ladders in general (mounted on undercarriages or vehicles E06C5/00; permanently attached to fixed structures E06C9/00) > with rigid longitudinal member or members > Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
Of 6 combined children, 4 exist in both systems.
2 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E06C 1/383 Foldable ladders in which the longitudinal members are brought together on folding +1 CPC IPC+CPC Available in IPC and CPC
- E06C 1/39 Ladders having platforms; Ladders changeable into platforms (platforms for use on ladders E06C7/16) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class E06,2013–2023, worldwide · Source: EPO PATSTAT
- SAINT-GOBAIN GLASS FR 1,388
- HUNTER DOUGLAS US 874
- VIEW US 763
- VKR HOLDING DK 627
- GUARDIAN GLASS US 460
- PANASONIC INTELLECTUAL PROPERTY JP 426
- LG ELECTRONICS KR 406
- SOMFY ACTIVITES FR 368
- SGCC(STATE GRID CORPORATION OF CHINA) 353
- AGC GLASS EUROPE BE 350