of unchangeable ratio

of unchangeable ratio · 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 codeB62M9/02
Official titleof unchangeable ratio
Display labelof unchangeable ratio
Total patents106

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
20154
201611
201710
201813
201911
202013
20217
202212
20235
20248
20259
20263

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 B62M9/02?
CPC B62M9/02 is the Cooperative Patent Classification code for “of unchangeable ratio.”
How many patents are filed under CPC B62M9/02 (of unchangeable ratio)?
Our database includes 106 publications tagged with this CPC code.
Is patent activity under CPC B62M9/02 growing?
Publication counts under this code: 8 in 2024 vs 9 in 2025 (latest complete years).