Process and System for the Calcination of Gypsum
US-2025353789-A1 · Nov 20, 2025 · US
for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln {, i.e. to obtain beta-hemihydrate (C04B11/0281 - C04B11/0288 take precedence)} · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B11/036 |
| Official title | for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln {, i.e. to obtain beta-hemihydrate (C04B11/0281 - C04B11/0288 take precedence)} |
| Display label | for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln {, i.e. to obtain beta-hemihydrate (C04B11/0281 - C04B11/0288 take precedence)} |
| Total patents | 9 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 5 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025353789-A1 · Nov 20, 2025 · US
US-2025345967-A1 · Nov 13, 2025 · US
US-2025326156-A1 · Oct 23, 2025 · US
US-2025263338-A1 · Aug 21, 2025 · US
US-2025136504-A1 · May 1, 2025 · US
US-2023373854-A1 · Nov 23, 2023 · US
US-11512019-B2 · Nov 29, 2022 · US
US-10427978-B2 · Oct 1, 2019 · US
US-9919969-B2 · Mar 20, 2018 · US