treated with inorganic compounds

treated with 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 codeC09C1/642
Official title{treated with inorganic compounds}
Display labeltreated with inorganic compounds
Total patents88

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
20158
201611
20175
201811
20197
202010
20216
20229
20237
20245
20257
20262

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 C09C1/642?
CPC C09C1/642 is the Cooperative Patent Classification code for “treated with inorganic compounds.”
How many patents are filed under CPC C09C1/642 (treated with inorganic compounds)?
Our database includes 88 publications tagged with this CPC code.
Is patent activity under CPC C09C1/642 growing?
Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).