Strainers not provided for elsewhere

Strainers not provided for elsewhere · 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 codeB01D35/28
Official titleStrainers not provided for elsewhere
Display labelStrainers not provided for elsewhere
Total patents72

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20159
20164
20174
20187
201910
20202
20217
202210
20237
20247
20253
20262

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 B01D35/28?
CPC B01D35/28 is the Cooperative Patent Classification code for “Strainers not provided for elsewhere.”
How many patents are filed under CPC B01D35/28 (Strainers not provided for elsewhere)?
Our database includes 72 publications tagged with this CPC code.
Is patent activity under CPC B01D35/28 growing?
Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).