C09B50/00 - CPC Classification Index

ClassID:

102389 ⎘

C09B50/00 - CPC Classification

Classification description:

Formazane dyes; Tetrazolium dyes

Sub-classes:

C09B50/02 » Tetrazolium dyes 0
C09B50/04 » Metal-free formazan dyes 0
C09B50/06 » Bis-formazan dyes 0
C09B50/08 » Meso-acyl formazan dyes 0
C09B50/10 » Cationic formazan dyes 2

Recent Application in this class:

20060035172

Optical recording medium, and, method and apparatus for optical recording and reproducing using optical recording medium

20050250047

Light-fast, high-capacity optical storage media