Cleaning containers having tubular shape, e.g. casks, barrels, drums (B08B9/20 take precedence)

Cleaning containers having tubular shape, e.g. casks, barrels, drums (B08B9/20 take precedence) · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB08B9/0804
Official title{Cleaning containers having tubular shape, e.g. casks, barrels, drums (B08B9/20 take precedence)}
Display labelCleaning containers having tubular shape, e.g. casks, barrels, drums (B08B9/20 take precedence)
Total patents45

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
20153
20165
20173
20182
20196
20203
20213
20224
20235
20244
20257

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 B08B9/0804?
CPC B08B9/0804 is the Cooperative Patent Classification code for “Cleaning containers having tubular shape, e.g. casks, barrels, drums (B08B9/20 take precedence).”
How many patents are filed under CPC B08B9/0804 (Cleaning containers having tubular shape, e.g. casks, barrels, drums (B08B9/20 take precedence))?
Our database includes 45 publications tagged with this CPC code.
Is patent activity under CPC B08B9/0804 growing?
Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).