Warnings · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04C2270/78 |
| Official title | Warnings |
| Display label | Warnings |
| Total patents | 25 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 6 |
| 2025 | 1 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12577952-B2 · Mar 17, 2026 · US
US-12378964-B2 · Aug 5, 2025 · US
US-12173712-B2 · Dec 24, 2024 · US
US-2024302852-A1 · Sep 12, 2024 · US
US-11976648-B2 · May 7, 2024 · US
US-2024141894-A1 · May 2, 2024 · US
US-11946470-B2 · Apr 2, 2024 · US
US-2024077079-A1 · Mar 7, 2024 · US
US-2023392600-A1 · Dec 7, 2023 · US
US-11460024-B2 · Oct 4, 2022 · US
US-2021388835-A1 · Dec 16, 2021 · US
US-2021381505-A1 · Dec 9, 2021 · US
US-2021372405-A1 · Dec 2, 2021 · US
US-2021310479-A1 · Oct 7, 2021 · US
US-11085686-B2 · Aug 10, 2021 · US
US-10662946-B2 · May 26, 2020 · US
US-2020116406-A1 · Apr 16, 2020 · US
US-2020109712-A1 · Apr 9, 2020 · US
US-10571177-B2 · Feb 25, 2020 · US
US-10520234-B2 · Dec 31, 2019 · US
Answers are generated from the same data shown on this page.