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IPC Subgroup
E04F 11/18

Balustrades; Handrails

Introduced: September 1968

Last revised: January 2006

Full Title

Stairways, ramps, or like structures; Balustrades; Handrails > Balustrades; Handrails

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
BUILDING
Subclass:
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS

Related Keywords

balustrades for BALCONIESBALUSTERS, BALUSTRADESBANISTERSHAND(S) rails for buildingshand RAIL(S) for buildingsRAILINGS for staircases

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