• All sections
• D - Textiles; paper
• D21H - Pulp compositions; preparation thereof not covered by subclasses , ; impregnating or coating of paper; treatment of finished paper not covered by class or subclass ; paper not otherwise provided for
• D21H 19/20 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Patent holdings for IPC class D21H 19/20

Total number of patents in this class: 459

10-year publication summary

Principal owners for this class