C09B 62/44 with the reactive group not directly attached to a heterocyclic ring
Full Title
Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves > with the reactive group not directly attached to a heterocyclic ring
Filing statistics
CPC C09B 62/44 belongs to the parent subclass C09B, which recorded 29,807 patent applications worldwide between 2013 and 2023. Annual filings declined from 3,030 in 2013 to 1,785 in 2023 (-41%), peaking at 3,329 applications in 2017. The most active applicants in class C09 are LG CHEM (7,954 applications), HALLIBURTON ENERGY SERVICES GROUP (6,584 applications) and NITTO DENKO CORPORATION (6,500 applications).
Source: EPO PATSTAT, worldwide filings
10 direct subcodes
Child Classifications
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- C09B 62/443 the reactive group being alternatively specified
- C09B 62/465 the reactive group being an acryloyl group, a quaternised or non-quaternised aminoalkyl carbonyl group or a (—N)n—CO—A—O—X or (—N)n—CO—A—Hal group, wherein A is an alkylene or alkylidene group, X is hydrogen or an acyl radical of an organic or inorganic acid, Hal is a halogen atom, and n is 0 or 1
- C09B 62/485 the reactive group being a halo-cyclobutyl-carbonyl, halo-cyclobutyl-vinyl-carbonyl, or halo-cyclobutenyl-carbonyl group
- C09B 62/503 the reactive group being an esterified or non-esterified hydroxyalkyl sulfonyl or mercaptoalkyl sulfonyl group, a quaternised or non-quaternised aminoalkyl sulfonyl group, a heterylmercapto alkyl sulfonyl group, a vinyl sulfonyl or a substituted vinyl sulfonyl group, or a thiophene-dioxide group
- C09B 62/523 the reactive group being an esterified or non-esterified hydroxyalkyl sulfonyl amido or hydroxyalkyl amino sulfonyl group, a quaternised or non-quaternised amino alkyl sulfonyl amido group, or a substituted alkyl amino sulfonyl group, or a halogen alkyl sulfonyl amido or halogen alkyl amino sulfonyl group or a vinyl sulfonylamido or a substituted vinyl sulfonamido group
- C09B 62/54 the reactive group being an epoxy or halohydrin group
- C09B 62/62 the reactive group being an ethylenamino or N-acylated ethylenamino group or a —CO—NH—CH2—CH2—X group, wherein X is a halogen atom, a quaternary ammonium group or O-acyl and acyl is derived from an organic or inorganic acid, or a beta-substituted ethylamine group
- C09B 62/763 the reactive group being a N-methylol group or an O-derivative thereof
- C09B 62/78 with other reactive groups
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