Charging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges

Charging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges · 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 codeF02K9/24
Official titleCharging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges
Display labelCharging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges
Total patents33

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
20161
20173
20185
20194
20204
20214
20222
20232
20243
20255

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 F02K9/24?
CPC F02K9/24 is the Cooperative Patent Classification code for “Charging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges.”
How many patents are filed under CPC F02K9/24 (Charging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges)?
Our database includes 33 publications tagged with this CPC code.
Is patent activity under CPC F02K9/24 growing?
Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).