PatentsDB

by a lengthwise movement of a wall, e.g. a plate, a piston, or the like (for charging B65F3/20)

by a lengthwise movement of a wall, e.g. a plate, a piston, or the like (for charging B65F3/20) · 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 codeB65F3/28
Official titleby a lengthwise movement of a wall, e.g. a plate, a piston, or the like (for charging B65F3/20)
Display labelby a lengthwise movement of a wall, e.g. a plate, a piston, or the like (for charging B65F3/20)
Total patents47

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
20151
20173
20182
20192
20202
20213
20224
202311
202410
20257
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 B65F3/28?
CPC B65F3/28 is the Cooperative Patent Classification code for “by a lengthwise movement of a wall, e.g. a plate, a piston, or the like (for charging B65F3/20).”
How many patents are filed under CPC B65F3/28 (by a lengthwise movement of a wall, e.g. a plate, a piston, or the like (for charging B65F3/20))?
Our database includes 47 publications tagged with this CPC code.
Is patent activity under CPC B65F3/28 growing?
Publication counts under this code: 10 in 2024 vs 7 in 2025 (latest complete years).