containing inorganic luminescent materials

Introduced: July 1974

Full Title

Luminescent materials, e.g. electroluminescent or chemiluminescent > containing inorganic luminescent materials

Of 30 combined children, 20 exist in both systems.

10 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1985.

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C09K 11/0805 +3 CPC CPC only CPC only
C09K 11/0827 +1 CPC CPC only CPC only
C09K 11/0838 CPC only CPC only
C09K 11/0844 CPC only CPC only
C09K 11/085 CPC only CPC only
C09K 11/0855 +2 CPC CPC only CPC only
C09K 11/0877 CPC only CPC only
C09K 11/0883 CPC only CPC only
C09K 11/0888 CPC only CPC only
C09K 11/0894 CPC only CPC only
C09K 11/54 containing zinc or cadmium since 1985 IPC+CPC Available in IPC and CPC
C09K 11/55 containing beryllium, magnesium, alkali metals or alkaline earth metals since 1985 IPC+CPC Available in IPC and CPC
C09K 11/56 containing sulfur since 1985 +1 CPC IPC+CPC Available in IPC and CPC
C09K 11/57 containing manganese or rhenium since 1985 +2 CPC IPC+CPC Available in IPC and CPC
C09K 11/58 containing copper, silver or gold since 1985 +2 CPC IPC+CPC Available in IPC and CPC
C09K 11/59 containing silicon since 1985 +2 CPC IPC+CPC Available in IPC and CPC
C09K 11/60 containing iron, cobalt or nickel since 1985 +2 CPC IPC+CPC Available in IPC and CPC
C09K 11/61 containing fluorine, chlorine, bromine, iodine or unspecified halogen elements since 1985 +4 CPC IPC+CPC Available in IPC and CPC
C09K 11/62 containing gallium, indium or thallium since 1985 +2 CPC IPC+CPC Available in IPC and CPC
C09K 11/63 containing boron since 1985 +3 CPC IPC+CPC Available in IPC and CPC

Class C09,2013–2023, worldwide · Source: EPO PATSTAT

LG CHEM KR 6,420
NITTO DENKO CORPORATION JP 5,752
HALLIBURTON ENERGY SERVICES GROUP US 5,650
3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 5,635
DOW GLOBAL TECHNOLOGIES US 4,844
MERCK PATENT DE 4,779
CHINESE ACADEMY OF SCIENCES 4,311
FUJIFILM JP 4,205
BASF (BADISCHE ANILIN & SODA FABRIK) DE 4,039
SINOPEC (CHINA PETROCHEMICAL CORPORATION) 3,931

Class C09,2013–2023, worldwide · Source: EPO PATSTAT

LG CHEM KR 7,954
HALLIBURTON ENERGY SERVICES GROUP US 6,584
NITTO DENKO CORPORATION JP 6,500
3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,490
DOW GLOBAL TECHNOLOGIES US 6,324
FUJIFILM JP 5,832
MERCK PATENT DE 5,481
BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,147
SAMSUNG DISPLAY KR 5,105
NITTO DENKO CORPORATION 3,584