Inorganic compounds

Inorganic compounds · Cooperative Patent Classification (CPC)

Agriculture, food, personal care, health, and life sciences.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeA61K9/501
Official title{Inorganic compounds}
Display labelInorganic compounds
Total patents334

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
201517
201629
201725
201831
201932
202039
202137
202223
202332
202438
202520
202611

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 A61K9/501?
CPC A61K9/501 is the Cooperative Patent Classification code for “Inorganic compounds.”
How many patents are filed under CPC A61K9/501 (Inorganic compounds)?
Our database includes 334 publications tagged with this CPC code.
Is patent activity under CPC A61K9/501 growing?
Publication counts under this code: 38 in 2024 vs 20 in 2025 (latest complete years).