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PCE
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DIFF Subgroup
E04C 5/20

of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires

Introduced: September 1968

Title

Titles differ between systems:

IPC: of other material than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires

CPC: of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires

Full Title

Full titles differ between systems:

IPC:

Reinforcing elements, e.g. for concrete; Auxiliary elements therefor > Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups > of other material than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires

CPC:

Reinforcing elements, e.g. for concrete; Auxiliary elements therefor ( material composition C21, C22) > Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups ( tools connecting reinforcing elements E04G21/12) > of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires

Of 5 combined children, 0 exist in both systems.

5 codes are CPC-only extensions.

Child Classifications

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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