FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES

Introduced: September 1968

Classification Context

Section:: FIXED CONSTRUCTIONS
Class:: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS
Subclass:: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES

Description

E06B covers the design and construction of closures for openings in buildings, vehicles, fences, and comparable structures, including doors, windows, blinds, gates, and related hardware. This subclass encompasses both fixed installations (e.g., fixed windows, stationary panels) and movable closures (e.g., hinged doors, sliding windows, roller blinds, swing gates), as well as their structural components and operating mechanisms. The classification includes general closure systems and assemblies that do not fall under more specialized subclasses dedicated to specific closure types or technical features (such as emergency exits or specialized sealing systems). Adjacent subclasses (E06C, E06D) address more particular technical aspects like closures with special heating/cooling functions or specific movable door and window mechanisms.

Filing statistics

IPC subclass E06B recorded 252,676 patent applications worldwide between 2013 and 2023. Annual filings grew from 14,786 in 2013 to 24,359 in 2023 (+65%), peaking at 33,082 applications in 2020. The most active applicants in class E06 are SGCC(STATE GRID CORPORATION OF CHINA) (1,398 applications), YKK AP (1,252 applications) and LIXIL CORPORATION (1,235 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

windows for AIRCRAFTdoor or window BLINDSDOOR(S)DOOR(S) for furnitureDOOR(S) or DOOR(S) -frames in generalfixing of glass panesglazing of GREENHOUSESHATCHESJAMBS(2) [= windows]LOUVRE doors, windows or grillesSERVICE hatchesSHOP(S) windowsSLAT(S) of blindsconstruction of windows or doors for VEHICLESWINDOW(S)WINDOW(S) frames(1) WING(S) [= swingable, slidable or otherwise movable members, such as doors or windows, for closing openings]

6 direct subcodes

Child Classifications

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E06B 1/00 Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
E06B 11/00 Means for allowing passage through fences, barriers, or the like, e.g. stiles
E06B 3/00 Window sashes, door leaves, or like elements for closing openings; Layout of fixed or moving closures, e.g. windows; Features of rigidly-mounted outer frames relating to the mounting of wing frames
E06B 5/00 Doors, windows, or like closures for special purposes; Border constructions therefor
E06B 7/00 Special arrangements or measures in connection with doors or windows
E06B 9/00 Screening or protective devices for openings, with or without operating or securing mechanisms; Closures of similar construction

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