Ptc semiconductor ceramic composition, method for producing the semiconductor ceramic and heating device and use
US-2025022637-A1 · Jan 16, 2025 · US
based on lead titanates · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B35/472 |
| Official title | based on lead titanates |
| Display label | based on lead titanates |
| Total patents | 32 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 1 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025022637-A1 · Jan 16, 2025 · US
US-2024326292-A1 · Oct 3, 2024 · US
US-11873253-B2 · Jan 16, 2024 · US
US-11823838-B2 · Nov 21, 2023 · US
US-2023345838-A1 · Oct 26, 2023 · US
US-11618716-B2 · Apr 4, 2023 · US
US-11428964-B2 · Aug 30, 2022 · US
US-11358904-B2 · Jun 14, 2022 · US
US-2021188713-A1 · Jun 24, 2021 · US
US-10946369-B2 · Mar 16, 2021 · US
US-2021055580-A1 · Feb 25, 2021 · US
US-10928556-B2 · Feb 23, 2021 · US
US-2020386916-A1 · Dec 10, 2020 · US
US-2020373476-A1 · Nov 26, 2020 · US
US-2020306743-A1 · Oct 1, 2020 · US
US-2020203595-A1 · Jun 25, 2020 · US
US-2020079696-A1 · Mar 12, 2020 · US
US-10538461-B2 · Jan 21, 2020 · US
US-10181556-B2 · Jan 15, 2019 · US
US-2018286586-A1 · Oct 4, 2018 · US
Answers are generated from the same data shown on this page.