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DIFF Subgroup
E04F 21/12

acting by gas pressure, e.g. steam pressure

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Implements for finishing work on buildings > for applying plasticised masses to surfaces, e.g. plastering walls > Implements for applying plaster, insulating material, or the like > Mechanical implements > acting by gas pressure, e.g. steam pressure

CPC:

Implements for finishing work on buildings (for working or treating building elements of stone or stone-like material B28D) > for applying plasticised masses to surfaces, e.g. plastering walls (; specially for flooring E04F21/20; implements for painting or decorating B44; applying liquids or other fluent materials to surfaces, in general B05) > Implements for applying plaster, insulating material, or the like > Mechanical implements (E04F21/14 takes precedence; spraying in general B05B; sand-blasting B24C) > acting by gas pressure, e.g. steam pressure

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class E04,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 1,675
  2. CHINA MCC17 GROUP COMPANY 1,593
  3. ZHEJIANG YASHA DECORATION COMPANY 1,551
  4. SGCC(STATE GRID CORPORATION OF CHINA) 1,297
  5. GOLD MANTIS FINE DECORATION TECHNOLOGY (SUZHOU) COMPANY 1,212
  6. SHENYANG JIANZHU UNIVERSITY 926
  7. VAELINGE INNOVATION SE 901
  8. CHINA MCC5 GROUP CORPORATION 894
  9. VKR HOLDING DK 854
  10. SHANGHAI BAOYE GROUP CORPORATION 753