Method for preparing silicon nitride ceramic material
US-2024076243-A1 · Mar 7, 2024 · US
obtained by gas pressure sintering · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B35/5755 |
| Official title | {obtained by gas pressure sintering} |
| Display label | obtained by gas pressure sintering |
| Total patents | 11 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2018 | 2 |
| 2019 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2024076243-A1 · Mar 7, 2024 · US
US-11572316-B2 · Feb 7, 2023 · US
US-2022314488-A1 · Oct 6, 2022 · US
US-10882005-B2 · Jan 5, 2021 · US
US-2019185380-A1 · Jun 20, 2019 · US
US-10273190-B2 · Apr 30, 2019 · US
US-2019002352-A1 · Jan 3, 2019 · US
US-2018207578-A1 · Jul 26, 2018 · US
US-2018201545-A1 · Jul 19, 2018 · US
US-9512040-B2 · Dec 6, 2016 · US
US-9240506-B2 · Jan 19, 2016 · US