DIFF Main Group
C09K 11/00 Luminescent materials, e.g. electroluminescent or chemiluminescent
Introduced: July 1974
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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- C09K 11/02 Use of particular materials as binders, particle coatings or suspension media therefor since 1974 +1 CPC IPC+CPC Available in IPC and CPC
- C09K 11/04 containing natural or artificial radioactive elements or unspecified radioactive elements since 1974 IPC+CPC Available in IPC and CPC
- C09K 11/08 containing inorganic luminescent materials since 1974 +10 CPC IPC+CPC Available in IPC and CPC