Electromagnetic relay
US-2024071702-A1 · Feb 29, 2024 · US
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Recuperation of liquid or gas
Recuperation of liquid or gas · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H33/57 |
| Official title | Recuperation of liquid or gas |
| Display label | Recuperation of liquid or gas |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas circuit breaker
US-11798762-B2 · Oct 24, 2023 · US
Electrical energy transmission device and life cycle management
US-11509121-B2 · Nov 22, 2022 · US
Gas circuit breaker
US-2022319785-A1 · Oct 6, 2022 · US
Electrical Energy Transmission Device And Life Cycle Management
US-2021336479-A1 · Oct 28, 2021 · US
Particle extraction system for an interrupter
US-10910178-B2 · Feb 2, 2021 · US
Particle extraction system for an interrupter
US-2020043685-A1 · Feb 6, 2020 · US
Particle extraction system for an interrupter
US-10483059-B2 · Nov 19, 2019 · US
Particle extraction system for an interrupter
US-2018190453-A1 · Jul 5, 2018 · US