Capacitor wire and electronic device including the same
US-12451291-B2 · Oct 21, 2025 · US
Tubular capacitors
Tubular capacitors · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01G4/28 |
| Official title | Tubular capacitors |
| Display label | Tubular capacitors |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 1 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cylindrical capacitor and method of forming the same
US-2025308774-A1 · Oct 2, 2025 · US
Capacitor-wire-embedded wiring board
US-12267962-B2 · Apr 1, 2025 · US
Chip capacitor including capacitor wires
US-12080479-B2 · Sep 3, 2024 · US
Coaxial energy harvesting and storage
US-2024242898-A1 · Jul 18, 2024 · US
Conductor structure
US-2024235411-A9 · Jul 11, 2024 · US
Conductor structure
US-2024136937-A1 · Apr 25, 2024 · US
Wire structure, wire capacitor including wire structure, and electronic device including wire capacitor
US-2024021663-A1 · Jan 18, 2024 · US
Capacitor wire and electronic device including the same
US-2024006122-A1 · Jan 4, 2024 · US
Capacitors with nanoislands on conductive plates
US-11855125-B2 · Dec 26, 2023 · US
Capacitor-wire-embedded wiring board
US-2023319998-A1 · Oct 5, 2023 · US
Chip capacitor including capacitor wires
US-2023307180-A1 · Sep 28, 2023 · US
Polyphased electrical machine with integrated power electronics and an integrated coolant circuit
US-11764652-B2 · Sep 19, 2023 · US
Capacitor wire and electronic device including the same
US-2023245828-A1 · Aug 3, 2023 · US
Co-axial grid array capacitor assembly
US-11538638-B2 · Dec 27, 2022 · US
Capacitor component
US-11495407-B2 · Nov 8, 2022 · US
Method for assembling a metal part and a ceramic part, and electrical device, in particular a capacitive sensor, produced by said method
US-2022051848-A1 · Feb 17, 2022 · US
Solder column grid array capacitors
US-2022005649-A1 · Jan 6, 2022 · US
Polyphased electrical machine with integrated power electronics and an integrated coolant circuit
US-2021351670-A1 · Nov 11, 2021 · US
Capacitor component
US-2021183575-A1 · Jun 17, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01G4/28?
- CPC H01G4/28 is the Cooperative Patent Classification code for “Tubular capacitors.”
- How many patents are filed under CPC H01G4/28 (Tubular capacitors)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC H01G4/28 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).