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PCE
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DIFF Subgroup
F21V 7/04

Optical design

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Reflectors for light sources > Optical design

CPC:

Reflectors for light sources (characterised by cooling arrangements F21V29/505) > Optical design

Of 10 combined children, 5 exist in both systems.

5 codes are CPC-only extensions.

Child Classifications

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  • F21V 7/041 CPC only CPC only
  • F21V 7/043 CPC only CPC only
  • F21V 7/045 CPC only CPC only
  • F21V 7/046 CPC only CPC only
  • F21V 7/048 CPC only CPC only
  • F21V 7/05 plane IPC+CPC Available in IPC and CPC
  • F21V 7/06 with parabolic curvature IPC+CPC Available in IPC and CPC
  • F21V 7/07 with hyperbolic curvature IPC+CPC Available in IPC and CPC
  • F21V 7/08 with elliptical curvature IPC+CPC Available in IPC and CPC
  • F21V 7/09 with a combination of different curvatures 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