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DIFF Subgroup
F21V 1/16

characterised by the material

Introduced: September 1968

Full Title

Shades for light sources > Covers for frames; Frameless shades > characterised by the material

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

Child Classifications

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  • F21V 1/17 the material comprising photoluminescent substances since 2018 IPC+CPC Available in IPC and CPC
  • F21V 1/18 the material being paper IPC+CPC Available in IPC and CPC
  • F21V 1/20 the material being glass IPC+CPC Available in IPC and CPC
  • F21V 1/22 the material being plastics IPC+CPC Available in IPC and CPC
  • F21V 1/24 the material being metal 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