Apparatus specially designed for the use of free, immobilized or carrier-bound enzymes

Apparatus specially designed for the use of free, immobilized or carrier-bound enzymes · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC12M21/18
Official title{Apparatus specially designed for the use of free, immobilized or carrier-bound enzymes}
Display labelApparatus specially designed for the use of free, immobilized or carrier-bound enzymes
Total patents218

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
201521
201629
201731
201827
201920
202020
202113
202217
202313
202413
202513
20261

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 C12M21/18?
CPC C12M21/18 is the Cooperative Patent Classification code for “Apparatus specially designed for the use of free, immobilized or carrier-bound enzymes.”
How many patents are filed under CPC C12M21/18 (Apparatus specially designed for the use of free, immobilized or carrier-bound enzymes)?
Our database includes 218 publications tagged with this CPC code.
Is patent activity under CPC C12M21/18 growing?
Publication counts under this code: 13 in 2024 vs 13 in 2025 (latest complete years).