over a flat surface or in troughs

over a flat surface or in troughs · 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 codeB65G51/03
Official titleover a flat surface or in troughs
Display labelover a flat surface or in troughs
Total patents128

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
201511
201626
201724
20188
201910
20206
20217
202210
20234
20248
20259
20265

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 B65G51/03?
CPC B65G51/03 is the Cooperative Patent Classification code for “over a flat surface or in troughs.”
How many patents are filed under CPC B65G51/03 (over a flat surface or in troughs)?
Our database includes 128 publications tagged with this CPC code.
Is patent activity under CPC B65G51/03 growing?
Publication counts under this code: 8 in 2024 vs 9 in 2025 (latest complete years).