Preparation by working up brines; seawater or spent lyes

Preparation by working up brines; seawater or spent lyes · 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 codeC01D3/06
Official titlePreparation by working up brines; seawater or spent lyes
Display labelPreparation by working up brines; seawater or spent lyes
Total patents51

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20157
20166
20174
20182
20205
202110
20223
20235
20246
20252
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 C01D3/06?
CPC C01D3/06 is the Cooperative Patent Classification code for “Preparation by working up brines; seawater or spent lyes.”
How many patents are filed under CPC C01D3/06 (Preparation by working up brines; seawater or spent lyes)?
Our database includes 51 publications tagged with this CPC code.
Is patent activity under CPC C01D3/06 growing?
Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).