Purification and regeneration of coating baths

Purification and regeneration of coating baths · 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 codeC23C18/1617
Official title{Purification and regeneration of coating baths}
Display labelPurification and regeneration of coating baths
Total patents38

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20154
20166
201711
20181
20195
20201
20211
20224
20231
20242
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 C23C18/1617?
CPC C23C18/1617 is the Cooperative Patent Classification code for “Purification and regeneration of coating baths.”
How many patents are filed under CPC C23C18/1617 (Purification and regeneration of coating baths)?
Our database includes 38 publications tagged with this CPC code.
Is patent activity under CPC C23C18/1617 growing?
Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).