Pteridophyta [fern allies]; Filicophyta [ferns]

Pteridophyta [fern allies]; Filicophyta [ferns] · Cooperative Patent Classification (CPC)

Agriculture, food, personal care, health, and life sciences.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeA01N65/04
Official titlePteridophyta [fern allies]; Filicophyta [ferns]
Display labelPteridophyta [fern allies]; Filicophyta [ferns]
Total patents57

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
20166
20177
20199
202011
20214
20226
20232
20246
20256

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 A01N65/04?
CPC A01N65/04 is the Cooperative Patent Classification code for “Pteridophyta [fern allies]; Filicophyta [ferns].”
How many patents are filed under CPC A01N65/04 (Pteridophyta [fern allies]; Filicophyta [ferns])?
Our database includes 57 publications tagged with this CPC code.
Is patent activity under CPC A01N65/04 growing?
Publication counts under this code: 6 in 2024 vs 6 in 2025 (latest complete years).