Over-current protection device
US-2024387080-A1 · Nov 21, 2024 · US
formed with two or more layers
formed with two or more layers · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01C7/021 |
| Official title | {formed with two or more layers} |
| Display label | formed with two or more layers |
| Total patents | 184 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 18 |
| 2017 | 16 |
| 2018 | 17 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 14 |
| 2022 | 19 |
| 2023 | 15 |
| 2024 | 19 |
| 2025 | 24 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Thin-film resistor and method for producing the same
US-10115504-B2 · Oct 30, 2018 · US
Surface-mountable over-current protection device
US-10096407-B2 · Oct 9, 2018 · US
Reflow solderable positive temperature coefficient circuit protection device
US-2018261362-A1 · Sep 13, 2018 · US
Protection element and rechargeable battery including the same
US-9997762-B2 · Jun 12, 2018 · US
Printed heater elements integrated in construction materials
US-2018094434-A1 · Apr 5, 2018 · US
Surface-mountable over-current protection device
US-2018033527-A1 · Feb 1, 2018 · US
Electronic component
US-9881742-B2 · Jan 30, 2018 · US
PTC thermistor member
US-9870850-B2 · Jan 16, 2018 · US
Ceramic electronic component and manufacturing method therefor
US-9840787-B2 · Dec 12, 2017 · US
Electronic component
US-9831018-B2 · Nov 28, 2017 · US
Electrical component, component arrangement, and a method for producing an electrical component and component arrangement
US-2017290164-A1 · Oct 5, 2017 · US
Copper foil and methods of use
US-2017203544-A1 · Jul 20, 2017 · US
Copper foil and methods of use
US-9707738-B1 · Jul 18, 2017 · US
Conductive polymer electronic devices with surface mountable configuration and methods for manufacturing same
US-9697934-B2 · Jul 4, 2017 · US
Thin films having large temperature coefficient of resistance and methods of fabricating same
US-9664572-B2 · May 30, 2017 · US
PTC composition and over-current protection device containing the same
US-9653192-B2 · May 16, 2017 · US
Conductive polymer electronic devices with surface mountable configuration and methods for manufacturing same
US-2017098495-A1 · Apr 6, 2017 · US
Temperature independent resistor
US-9583240-B2 · Feb 28, 2017 · US
Electrical power contact with circuit protection
US-2017054243-A1 · Feb 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01C7/021?
- CPC H01C7/021 is the Cooperative Patent Classification code for “formed with two or more layers.”
- How many patents are filed under CPC H01C7/021 (formed with two or more layers)?
- Our database includes 184 publications tagged with this CPC code.
- Is patent activity under CPC H01C7/021 growing?
- Publication counts under this code: 19 in 2024 vs 24 in 2025 (latest complete years).