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DIFF Subgroup
E06B 3/677

Evacuating or filling the gap between the panes ; Preventing condensation in the gap between the panes (by means of spacing elements E06B3/663); Cleaning the gap between the panes

Introduced: January 1995

Title

Titles differ between systems:

IPC: Evacuating or filling the gap between the panes; Preventing condensation in the gap between the panes; Cleaning the gap between the panes

CPC: Evacuating or filling the gap between the panes ; Preventing condensation in the gap between the panes (by means of spacing elements E06B3/663); Cleaning the gap between the panes

Full Title

Full titles differ between systems:

IPC:

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 > Units comprising two or more parallel glass or like panes in spaced relationship, the panes being permanently secured together, e.g. along the edges > Evacuating or filling the gap between the panes; Preventing condensation in the gap between the panes; Cleaning the gap between the panes

CPC:

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 (E06B5/00 takes precedence; shutters or the like E06B9/00; glass panes C03) > Units comprising two or more parallel glass or like panes permanently secured together > Evacuating or filling the gap between the panes ; Preventing condensation in the gap between the panes (by means of spacing elements E06B3/663); Cleaning the gap between the panes

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class E06,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAINT-GOBAIN GLASS FR 1,388
  2. HUNTER DOUGLAS US 874
  3. VIEW US 763
  4. VKR HOLDING DK 627
  5. GUARDIAN GLASS US 460
  6. PANASONIC INTELLECTUAL PROPERTY JP 426
  7. LG ELECTRONICS KR 406
  8. SOMFY ACTIVITES FR 368
  9. SGCC(STATE GRID CORPORATION OF CHINA) 353
  10. AGC GLASS EUROPE BE 350