E06B 3/968 characterised by the way the connecting pieces are fixed in or on the frame members
Introduced: January 1990
Full Title
Full titles differ between systems:
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 > Corner joints or edge joints for windows, doors, or the like frames or wings > using separate connecting pieces, e.g. T-connecting pieces > characterised by the way the connecting pieces are fixed in or on the frame members
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) > Corner joints or edge joints for windows, doors, or the like frames or wings > using separate connection pieces, e.g. T-connection pieces (E06B3/9604 - E06B3/9636 and E06B3/984 - E06B3/99 take precedence) > characterised by the way the connecting pieces are fixed in or on the frame members
Of 6 combined children, 3 exist in both systems.
3 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1990.
Child Classifications
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- E06B 3/972 by increasing the cross-section of the connecting pieces, e.g. by expanding the connecting pieces with wedges (E06B3/976 takes precedence) since 1990 +1 CPC IPC+CPC Available in IPC and CPC
- E06B 3/98 the connecting pieces being specially adapted for drawing the frame members towards each other (E06B3/9684, E06B3/972, E06B3/976 take precedence) since 1990 +1 CPC 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