having at least one of the hydroxy groups esterified by an inorganic acid or a derivative thereof

having at least one of the hydroxy groups esterified by an inorganic acid or a derivative thereof · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC07C219/16
Official titlehaving at least one of the hydroxy groups esterified by an inorganic acid or a derivative thereof
Display labelhaving at least one of the hydroxy groups esterified by an inorganic acid or a derivative thereof
Total patents50

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20162
20174
20184
20193
20204
20212
20228
20247
202511
20265

Representative patents

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

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC C07C219/16?
CPC C07C219/16 is the Cooperative Patent Classification code for “having at least one of the hydroxy groups esterified by an inorganic acid or a derivative thereof.”
How many patents are filed under CPC C07C219/16 (having at least one of the hydroxy groups esterified by an inorganic acid or a derivative thereof)?
Our database includes 50 publications tagged with this CPC code.
Is patent activity under CPC C07C219/16 growing?
Publication counts under this code: 7 in 2024 vs 11 in 2025 (latest complete years).