CPC Subgroup Additional Only
C09C 2220/10 Wet methods, e.g. co-precipitation
Full Title
Methods of preparing the interference pigments > Wet methods, e.g. co-precipitation
2 direct subcodes
Child Classifications
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- C09C 2220/103 comprising a drying or calcination step after applying each layer
- C09C 2220/106 comprising only a drying or calcination step of the finally coated pigment
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