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US-12381978-B2 · Aug 5, 2025 · US
Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04M3/60 |
| Official title | Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator |
| Display label | Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator |
| Total patents | 31 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12381978-B2 · Aug 5, 2025 · US
US-2024187521-A1 · Jun 6, 2024 · US
US-11936810-B2 · Mar 19, 2024 · US
US-11917106-B2 · Feb 27, 2024 · US
US-2023164268-A1 · May 25, 2023 · US
US-11563850-B2 · Jan 24, 2023 · US
US-2022377176-A1 · Nov 24, 2022 · US
US-2021243300-A1 · Aug 5, 2021 · US
US-11012560-B2 · May 18, 2021 · US
US-10917522-B2 · Feb 9, 2021 · US
US-10893141-B2 · Jan 12, 2021 · US
US-10873667-B2 · Dec 22, 2020 · US
US-10827064-B2 · Nov 3, 2020 · US
US-10721356-B2 · Jul 21, 2020 · US
US-2020220978-A1 · Jul 9, 2020 · US
US-10601997-B2 · Mar 24, 2020 · US
US-10582052-B2 · Mar 3, 2020 · US
US-10574816-B2 · Feb 25, 2020 · US
US-10560575-B2 · Feb 11, 2020 · US
US-10542143-B2 · Jan 21, 2020 · US
Answers are generated from the same data shown on this page.