Protection circuit involving positive temperature coefficient device
US-2019273373-A1 · Sep 5, 2019 · US
Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient
Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02H9/026 |
| Official title | {Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient} |
| Display label | Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient |
| Total patents | 150 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 17 |
| 2017 | 10 |
| 2018 | 18 |
| 2019 | 20 |
| 2020 | 17 |
| 2021 | 14 |
| 2022 | 7 |
| 2023 | 14 |
| 2024 | 6 |
| 2025 | 12 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Power system
US-2019123550-A1 · Apr 25, 2019 · US
Intrinsic safety (is) barriers mountable on terminal blocks of input/output (i/o) modules or other devices
US-2019123548-A1 · Apr 25, 2019 · US
Positive temperature coefficient device for aircraft control systems
US-2018368210-A1 · Dec 20, 2018 · US
Electrical protection unit including a current limiter device
US-2018366289-A1 · Dec 20, 2018 · US
Surface-mountable over-current protection device
US-10141089-B1 · Nov 27, 2018 · US
Surface-mountable over-current protection device
US-2018336980-A1 · Nov 22, 2018 · US
Electrical Circuit And Method For Charging A Secondary Battery
US-2018323622-A1 · Nov 8, 2018 · US
Reflow solderable positive temperature coefficient circuit protection device
US-2018268969-A1 · Sep 20, 2018 · US
Power generation system and method with resistive braking capability
US-10050433-B2 · Aug 14, 2018 · US
Usb cable with thermal protection
US-2018212372-A1 · Jul 26, 2018 · US
Wiper blade comprising a heating electrical circuit and a ptc fuse
US-2018208157-A1 · Jul 26, 2018 · US
Usb cable with thermal protection
US-2018212418-A1 · Jul 26, 2018 · US
Thyristor and thermal switch device and assembly techniques therefor
US-2018204789-A1 · Jul 19, 2018 · US
Protection element and rechargeable battery including the same
US-9997762-B2 · Jun 12, 2018 · US
Over-current protection device
US-9997906-B1 · Jun 12, 2018 · US
Arc-free dc circuit breaker
US-2018138695-A1 · May 17, 2018 · US
USB cable with thermal protection
US-9960545-B2 · May 1, 2018 · US
Usb cable with thermal protection
US-2018097318-A1 · Apr 5, 2018 · US
Flexible positive temperature coefficient device with battery management system
US-2018047485-A1 · Feb 15, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02H9/026?
- CPC H02H9/026 is the Cooperative Patent Classification code for “Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient.”
- How many patents are filed under CPC H02H9/026 (Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient)?
- Our database includes 150 publications tagged with this CPC code.
- Is patent activity under CPC H02H9/026 growing?
- Publication counts under this code: 6 in 2024 vs 12 in 2025 (latest complete years).