CPC Subgroup Additional Only
C09K 2205/12 Hydrocarbons
Full Title
Aspects relating to compounds used in compression type refrigeration systems > Components > Hydrocarbons
4 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- C09K 2205/122 Halogenated hydrocarbons
- C09K 2205/124 Fluorinated cyclic hydrocarbons
- C09K 2205/126 Unsaturated fluorinated hydrocarbons
- C09K 2205/128 Perfluorinated hydrocarbons (C09K2205/124, C09K2205/126 take precedence)
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