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IPC Subclass
E06B

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.

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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Top Applicants

Top 10 applicants by patent filingsfor class E06, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 1,398
  2. YKK AP 1,252
  3. LIXIL CORPORATION 1,235
  4. SAINT-GOBAIN GLASS FR 1,133
  5. BUNKA SHUTTER COMPANY 839
  6. HUNTER DOUGLAS US 812
  7. SANKYOTATEYAMA 796
  8. SANWA SHUTTER CORPORATION 699
  9. VKR HOLDING DK 579
  10. VIEW US 557