CPC Subgroup Additional Only
C09K 2211/1003 Carbocyclic compounds
Full Title
Chemical nature of organic luminescent or tenebrescent compounds > Non-macromolecular compounds > Carbocyclic compounds
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- C09K 2211/1007 Non-condensed systems
- C09K 2211/1011 Condensed systems
- C09K 2211/1014 bridged by heteroatoms, e.g. N, P, Si or B
Top Applicants
Top 10 applicants by patent filingsfor 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