Line bushing and terminal studs with increased ignition gaps
US-11444506-B2 · Sep 13, 2022 · US
explosion-proof
explosion-proof · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K5/136 |
| Official title | explosion-proof |
| Display label | explosion-proof |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 9 |
| 2019 | 3 |
| 2020 | 14 |
| 2021 | 11 |
| 2022 | 7 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Frame for an explosion-proof housing
US-2022216676-A1 · Jul 7, 2022 · US
Generator enclosure with fire damper
US-2022140704-A1 · May 5, 2022 · US
Explosion-proof apparatus with a flameproof gas flow path and heat sink
US-2022132692-A1 · Apr 28, 2022 · US
Fire-spread prevention member, electrical device, and image forming apparatus
US-11277049-B2 · Mar 15, 2022 · US
Mine explosion-isolating hoisting device with built-in type permanent magnet motor
US-11242230-B2 · Feb 8, 2022 · US
Motor
US-11190076-B2 · Nov 30, 2021 · US
Electronics Enclosure Arrangement For An Electric Device And An Electric Device
US-2021368638-A1 · Nov 25, 2021 · US
Mine explosion-isolating hoisting device with built-in type permanent magnet motor
US-2021261389-A1 · Aug 26, 2021 · US
Explosion-proof apparatus
US-2021265688-A1 · Aug 26, 2021 · US
Line bushing
US-2021159754-A1 · May 27, 2021 · US
Explosion-proof structure
US-11018485-B2 · May 25, 2021 · US
Housing having cast pressure relief means
US-2021143617-A1 · May 13, 2021 · US
Motor
US-2021126505-A1 · Apr 29, 2021 · US
Molded motor
US-10985621-B2 · Apr 20, 2021 · US
Augmented reality apparatus
US-2021072549-A1 · Mar 11, 2021 · US
Explosion-proof housing having internal pressure reduction, methods
US-2021020388-A1 · Jan 21, 2021 · US
Housing for box fan, box fan and assembly method thereof
US-10859099-B2 · Dec 8, 2020 · US
Explosion-proof device
US-10840763-B2 · Nov 17, 2020 · US
Rear grill assembly for box fan
US-10731667-B2 · Aug 4, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K5/136?
- CPC H02K5/136 is the Cooperative Patent Classification code for “explosion-proof.”
- How many patents are filed under CPC H02K5/136 (explosion-proof)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC H02K5/136 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).