by vacuum spaces, e.g. Dewar flask (for household use A47J41/02)

by vacuum spaces, e.g. Dewar flask (for household use A47J41/02) · 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 codeF17C3/08
Official titleby vacuum spaces, e.g. Dewar flask (for household use A47J41/02)
Display labelby vacuum spaces, e.g. Dewar flask (for household use A47J41/02)
Total patents168

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20153
20166
201714
201814
201918
202014
20219
202219
202317
202421
202527
20266

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 F17C3/08?
CPC F17C3/08 is the Cooperative Patent Classification code for “by vacuum spaces, e.g. Dewar flask (for household use A47J41/02).”
How many patents are filed under CPC F17C3/08 (by vacuum spaces, e.g. Dewar flask (for household use A47J41/02))?
Our database includes 168 publications tagged with this CPC code.
Is patent activity under CPC F17C3/08 growing?
Publication counts under this code: 21 in 2024 vs 27 in 2025 (latest complete years).