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PCE
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DIFF Subgroup
F21K 2/06

using chemiluminescence

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Non-electric light sources using luminescence; Light sources using electrochemiluminescence > using chemiluminescence

CPC:

Non-electric light sources using luminescence (using excitation by radioactivity G21H3/02, H01J65/06, H01J65/08; using excitation by an external electromagnetic field or by external corpuscular radiation H01J65/04); Light sources using electrochemiluminescence > using chemiluminescence

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

IPC defines codes here since 1980.

Child Classifications

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  • F21K 2/08 activated by an electric field, i.e. electrochemiluminescence since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F21,2013–2023, worldwide · Source: EPO PATSTAT

  1. PANASONIC INTELLECTUAL PROPERTY 3,883
  2. VALEO VISION FR 2,797
  3. KOITO MANUFACTURING COMPANY 2,531
  4. OPPLE LIGHTING COMPANY 2,343
  5. SIGNIFY HOLDING NL 2,275
  6. TOSHIBA LIGHTING & TECHNOLOGY CORPORATION 1,982
  7. KOITO MANUFACTURING COMPANY JP 1,766
  8. LG INNOTEK COMPANY KR 1,651
  9. SUZHOU OPPLE LIGHTING COMPANY 1,633
  10. MITSUBISHI ELECTRIC CORPORATION 1,591

Top Applicants (CPC)

Class F21,2013–2023, worldwide · Source: EPO PATSTAT

  1. VALEO VISION FR 2,820
  2. SIGNIFY HOLDING NL 2,374
  3. KOITO MANUFACTURING COMPANY JP 1,890
  4. KOITO MANUFACTURING COMPANY 1,722
  5. LG INNOTEK COMPANY KR 1,624
  6. OSRAM DE 1,507
  7. LG ELECTRONICS KR 1,458
  8. PANASONIC INTELLECTUAL PROPERTY JP 1,433
  9. ZUMTOBEL LIGHTING AT 1,349
  10. PANASONIC INTELLECTUAL PROPERTY 1,275