for feeding, collecting, and storing cooling water or other cooling liquid

for feeding, collecting, and storing cooling water or other cooling liquid · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeF28B9/04
Official titlefor feeding, collecting, and storing cooling water or other cooling liquid
Display labelfor feeding, collecting, and storing cooling water or other cooling liquid
Total patents30

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20153
20162
20173
20186
20195
20205
20211
20222
20231
20241
20251

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 F28B9/04?
CPC F28B9/04 is the Cooperative Patent Classification code for “for feeding, collecting, and storing cooling water or other cooling liquid.”
How many patents are filed under CPC F28B9/04 (for feeding, collecting, and storing cooling water or other cooling liquid)?
Our database includes 30 publications tagged with this CPC code.
Is patent activity under CPC F28B9/04 growing?
Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).