This page is not indexed by search engines while we improve data quality.

Preparation from elemental phosphorus or phosphoric anhydride

Preparation from elemental phosphorus or phosphoric anhydride · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	C01B25/20
Official title	Preparation from elemental phosphorus or phosphoric anhydride
Display label	Preparation from elemental phosphorus or phosphoric anhydride
Total patents	7

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

Filing activity appears to be declining based on the most recent years.

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