mounting fan or blower rotors on shafts

mounting fan or blower rotors on shafts · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeF04D29/263
Official title{mounting fan or blower rotors on shafts}
Display labelmounting fan or blower rotors on shafts
Total patents312

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201515
201614
201718
201822
201942
202036
202137
202243
202329
202433
202521
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 F04D29/263?
CPC F04D29/263 is the Cooperative Patent Classification code for “mounting fan or blower rotors on shafts.”
How many patents are filed under CPC F04D29/263 (mounting fan or blower rotors on shafts)?
Our database includes 312 publications tagged with this CPC code.
Is patent activity under CPC F04D29/263 growing?
Publication counts under this code: 33 in 2024 vs 21 in 2025 (latest complete years).