Fixed capacitors; Processes of their manufacture (electrolytic capacitors H01G9/00)

Fixed capacitors; Processes of their manufacture (electrolytic capacitors H01G9/00) · 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 codeH01G4/00
Official titleFixed capacitors; Processes of their manufacture (electrolytic capacitors H01G9/00)
Display labelFixed capacitors; Processes of their manufacture (electrolytic capacitors H01G9/00)
Total patents50

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
20153
20162
20174
20183
201912
20209
20214
20235
20244
20253
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 H01G4/00?
CPC H01G4/00 is the Cooperative Patent Classification code for “Fixed capacitors; Processes of their manufacture (electrolytic capacitors H01G9/00).”
How many patents are filed under CPC H01G4/00 (Fixed capacitors; Processes of their manufacture (electrolytic capacitors H01G9/00))?
Our database includes 50 publications tagged with this CPC code.
Is patent activity under CPC H01G4/00 growing?
Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).