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PCE
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DIFF Subgroup
C25B 11/091

consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds

Introduced: January 2021

Full Title

Full titles differ between systems:

IPC:

Electrodes; Manufacture thereof not otherwise provided for > characterised by the material > Electrodes formed of electrocatalysts on a substrate or carrier > characterised by the electrocatalysts material > consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds

CPC:

Electrodes; Manufacture thereof not otherwise provided for > characterised by the material > Electrodes formed of electrocatalysts on a substrate or carrier > characterised by the electrocatalyst material > consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 2021.

Child Classifications

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  • C25B 11/093 at least one noble metal or noble metal oxide and at least one non-noble metal oxide since 2021 IPC+CPC Available in IPC and CPC
  • C25B 11/095 at least one of the compounds being organic since 2021 IPC+CPC Available in IPC and CPC
  • C25B 11/097 comprising two or more noble metals or noble metal alloys since 2021 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class C25,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 1,797
  2. EBARA CORPORATION JP 729
  3. CENTRAL SOUTH UNIVERSITY 650
  4. INDUSTRIE DE NORA IT 641
  5. ROBERT BOSCH DE 600
  6. JFE STEEL JP 593
  7. KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 553
  8. SIEMENS DE 536
  9. CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 525
  10. JX NIPPON MINING & METALS CORPORATION 499

Top Applicants (CPC)

Class C25,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 1,393
  2. JFE STEEL JP 914
  3. EBARA CORPORATION JP 738
  4. INDUSTRIE DE NORA IT 674
  5. JX NIPPON MINING & METALS CORPORATION JP 652
  6. NIPPON STEEL CORPORATION JP 633
  7. CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 630
  8. ROBERT BOSCH DE 626
  9. SIEMENS DE 587
  10. ATOTECH DEUTSCHLAND DE 561