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PCE
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DIFF Subgroup
E04H 12/12

of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements

Introduced: September 1968

Title

Titles differ between systems:

IPC: of concrete or other stone-like material, with or without internal or external reinforcement, e.g. with metal coverings, with permanent form elements

CPC: of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements

Full Title

Full titles differ between systems:

IPC:

Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures > Structures made of specified materials > of concrete or other stone-like material, with or without internal or external reinforcement, e.g. with metal coverings, with permanent form elements

CPC:

Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures (cooling towers E04H5/12; derricks for oil drilling E21B15/00) > Structures made of specified materials > of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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  • E04H 12/14 Truss-like structures IPC+CPC Available in 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