Inorganic compounds

Inorganic compounds · 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 codeC09K23/002
Official title{Inorganic compounds}
Display labelInorganic compounds
Total patents91

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20157
201615
201714
20189
20196
20204
20217
20226
20237
202411
20255

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 C09K23/002?
CPC C09K23/002 is the Cooperative Patent Classification code for “Inorganic compounds.”
How many patents are filed under CPC C09K23/002 (Inorganic compounds)?
Our database includes 91 publications tagged with this CPC code.
Is patent activity under CPC C09K23/002 growing?
Publication counts under this code: 11 in 2024 vs 5 in 2025 (latest complete years).