mounting compressor rotors on shafts

mounting compressor 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 codeF04D29/266
Official title{mounting compressor rotors on shafts}
Display labelmounting compressor 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 rapidly declining.

Patents filed per year
YearPatents
201522
201632
201719
201827
201948
202031
202132
202228
202330
202429
202512
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 F04D29/266?
CPC F04D29/266 is the Cooperative Patent Classification code for “mounting compressor rotors on shafts.”
How many patents are filed under CPC F04D29/266 (mounting compressor rotors on shafts)?
Our database includes 312 publications tagged with this CPC code.
Is patent activity under CPC F04D29/266 growing?
Publication counts under this code: 29 in 2024 vs 12 in 2025 (latest complete years).