Mounting rotors on shafts

Mounting 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 codeF04D29/20
Official titleMounting rotors on shafts
Display labelMounting rotors on shafts
Total patents198

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
201510
201611
201711
201820
201925
202023
202117
202227
202316
202413
202521
20264

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 F04D29/20?
CPC F04D29/20 is the Cooperative Patent Classification code for “Mounting rotors on shafts.”
How many patents are filed under CPC F04D29/20 (Mounting rotors on shafts)?
Our database includes 198 publications tagged with this CPC code.
Is patent activity under CPC F04D29/20 growing?
Publication counts under this code: 13 in 2024 vs 21 in 2025 (latest complete years).