• All sections
• D - Textilespaper
• D21H - Pulp compositionspreparation thereof not covered by subclasses , impregnating or coating of papertreatment of finished paper not covered by class or subclass paper not otherwise provided for
• D21H 17/58 - Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur

Patent holdings for IPC class D21H 17/58

Total number of patents in this class: 4

10-year publication summary

Principal owners for this class