Sulfides or polysulfides of magnesium, calcium, strontium, or barium

Sulfides or polysulfides of magnesium, calcium, strontium, or barium · 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 codeC01B17/42
Official titleSulfides or polysulfides of magnesium, calcium, strontium, or barium
Display labelSulfides or polysulfides of magnesium, calcium, strontium, or barium
Total patents25

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20151
20162
20171
20181
20192
20204
20211
20224
20231
20244
20253
20261

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 C01B17/42?
CPC C01B17/42 is the Cooperative Patent Classification code for “Sulfides or polysulfides of magnesium, calcium, strontium, or barium.”
How many patents are filed under CPC C01B17/42 (Sulfides or polysulfides of magnesium, calcium, strontium, or barium)?
Our database includes 25 publications tagged with this CPC code.
Is patent activity under CPC C01B17/42 growing?
Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).