CPC Subgroup Additional Only
C09K 2200/0458 Nitrogen-containing compounds
Full Title
Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers > Non-macromolecular organic compounds > Nitrogen-containing compounds
4 direct subcodes
Child Classifications
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- C09K 2200/0464 Isocyanates
- C09K 2200/047 Amides, imides, imines, N-oxides
- C09K 2200/0476 Heterocyclic nitrogen compounds, e.g. melamine
- C09K 2200/0482 Peptides, proteins or derivatives thereof
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