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IPC Subgroup
E04G 11/54

of extensible type, with or without adjustable supporting shoes, fishplates, or the like

Introduced: September 1968

Last revised: January 2006

Full Title

Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs > for floors, ceilings, or roofs of plane or curved surfaces > Supporting structures for shutterings or frames for floors or roofs > Girders, beams, or the like as supporting members for forms > of extensible type, with or without adjustable supporting shoes, fishplates, or the like

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
BUILDING
Subclass:
SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS

1 direct subcode

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class E04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 6,575
  2. ZHEJIANG YASHA DECORATION COMPANY 4,488
  3. SGCC(STATE GRID CORPORATION OF CHINA) 4,427
  4. CHINA CONSTRUCTION SECOND ENGINEERING BUREAU 4,352
  5. CHINA MCC17 GROUP COMPANY 3,122
  6. GOLD MANTIS FINE DECORATION TECHNOLOGY (SUZHOU) COMPANY 2,605
  7. SHENYANG JIANZHU UNIVERSITY 2,420
  8. CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION COMPANY 2,284
  9. CHINA CONSTRUCTION FIFTH ENGINEERING DIVISION CORPORATION 2,008
  10. CHINA CONSTRUCTION FIRST BUILDING (GROUP) CORPORATION 1,967