Selenium; Tellurium; Compounds thereof (phosphorus compounds C01B25/14)

Selenium; Tellurium; Compounds thereof (phosphorus compounds C01B25/14) · 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 codeC01B19/00
Official titleSelenium; Tellurium; Compounds thereof (phosphorus compounds C01B25/14)
Display labelSelenium; Tellurium; Compounds thereof (phosphorus compounds C01B25/14)
Total patents42

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
20155
20163
20178
20181
20191
20202
20213
20226
20235
20246
20252

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 C01B19/00?
CPC C01B19/00 is the Cooperative Patent Classification code for “Selenium; Tellurium; Compounds thereof (phosphorus compounds C01B25/14).”
How many patents are filed under CPC C01B19/00 (Selenium; Tellurium; Compounds thereof (phosphorus compounds C01B25/14))?
Our database includes 42 publications tagged with this CPC code.
Is patent activity under CPC C01B19/00 growing?
Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).