• All sections
• C - Chemistry; metallurgy
• C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
• C09B 62/503 - 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 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 viny

Patent holdings for IPC class C09B 62/503

Total number of patents in this class: 19

10-year publication summary

Principal owners for this class