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characterised by a combination of the chemical composition and the impregnation or treatment process or apparatus

characterised by a combination of the chemical composition and the impregnation or treatment process or apparatus · Cooperative Patent Classification (CPC)

Textile and paper production, treatment, and products.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeD04H1/643
Official title{characterised by a combination of the chemical composition and the impregnation or treatment process or apparatus}
Display labelcharacterised by a combination of the chemical composition and the impregnation or treatment process or apparatus
Total patents14

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20152
20162
20172
20181
20191
20201
20222
20241
20251
20261

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.