Cosintering or cofiring of a catalytic active layer with another type of layer

Cosintering or cofiring of a catalytic active layer with another type of layer · 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 codeH01M4/8889
Official title{Cosintering or cofiring of a catalytic active layer with another type of layer}
Display labelCosintering or cofiring of a catalytic active layer with another type of layer
Total patents135

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201517
201615
20179
201824
20199
202011
202117
202211
202310
20244
20257
20261

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 H01M4/8889?
CPC H01M4/8889 is the Cooperative Patent Classification code for “Cosintering or cofiring of a catalytic active layer with another type of layer.”
How many patents are filed under CPC H01M4/8889 (Cosintering or cofiring of a catalytic active layer with another type of layer)?
Our database includes 135 publications tagged with this CPC code.
Is patent activity under CPC H01M4/8889 growing?
Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).