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IPC Subgroup
E06B 7/3

Peep-holes; Devices for speaking through; Doors having windows

Introduced: September 1968

Last revised: January 2006

Full Title

Special arrangements or measures in connection with doors or windows > Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners > Peep-holes; Devices for speaking through; Doors having windows

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

Filing statistics

IPC E06B 7/3 belongs to the parent subclass E06B, which 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

peep-holes and speaking APERTURES in doors or windowsINSPECTION apertures for doors

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