Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages

Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH01M50/35
Official titleGas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
Display labelGas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
Total patents604

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
201522
201610
201718
201810
201916
202025
202146
202291
202393
2024128
2025119
202626

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 H01M50/35?
CPC H01M50/35 is the Cooperative Patent Classification code for “Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages.”
How many patents are filed under CPC H01M50/35 (Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages)?
Our database includes 604 publications tagged with this CPC code.
Is patent activity under CPC H01M50/35 growing?
Publication counts under this code: 128 in 2024 vs 119 in 2025 (latest complete years).