Glass, ceramics, concrete or stone

Glass, ceramics, concrete or stone · Cooperative Patent Classification (CPC)

Computing, optics, measurement, and control technologies.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeG01N2291/0232
Official titleGlass, ceramics, concrete or stone
Display labelGlass, ceramics, concrete or stone
Total patents351

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
201514
201619
201723
201824
201933
202034
202140
202245
202352
202444
202519
20264

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 G01N2291/0232?
CPC G01N2291/0232 is the Cooperative Patent Classification code for “Glass, ceramics, concrete or stone.”
How many patents are filed under CPC G01N2291/0232 (Glass, ceramics, concrete or stone)?
Our database includes 351 publications tagged with this CPC code.
Is patent activity under CPC G01N2291/0232 growing?
Publication counts under this code: 44 in 2024 vs 19 in 2025 (latest complete years).