Plasterboard and manufacture thereof
US-2026062358-A1 · Mar 5, 2026 · US
beta-hemihydrate
beta-hemihydrate · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B28/147 |
| Official title | {beta-hemihydrate} |
| Display label | beta-hemihydrate |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low-cost, effective phosphate-based lime bucking inhibitor
US-12552713-B2 · Feb 17, 2026 · US
Branched copolymers as dispersants for mineral binders
US-12378159-B2 · Aug 5, 2025 · US
Rapid setting, water durable binder composition
US-2025019307-A1 · Jan 16, 2025 · US
Similar material for rock slope model test under water-rock interaction, and preparation method and use thereof
US-2024385093-A1 · Nov 21, 2024 · US
Composition for inorganic binders
US-12024475-B2 · Jul 2, 2024 · US
Gypsum composition for mold production
US-2024140872-A1 · May 2, 2024 · US
Branched copolymers as dispersants for mineral binders
US-2024059612-A1 · Feb 22, 2024 · US
Low-cost, effective phosphate-based lime bucking inhibitor
US-2024043333-A1 · Feb 8, 2024 · US
Plaster formula with increased porosity
US-2023382793-A1 · Nov 30, 2023 · US
Process for the preparation of dispersing agents in a solid form and their use in mineral binding compositions
US-2023022017-A1 · Jan 26, 2023 · US
Polycondensate based water-reducer
US-11485683-B2 · Nov 1, 2022 · US
Gypsum based building material
US-2022048823-A1 · Feb 17, 2022 · US
Composite gypsum board and related methods
US-11046053-B2 · Jun 29, 2021 · US
Composite gypsum board and related methods
US-2020262180-A1 · Aug 20, 2020 · US
Gypsum fiber board and method for producing gypsum fiber boards
US-2020181022-A1 · Jun 11, 2020 · US
Gypsum fiber board and method for producing gypsum fiber boards
US-10562817-B2 · Feb 18, 2020 · US
Composition for inorganic binders
US-2019367421-A1 · Dec 5, 2019 · US
Gypsum products with high efficiency heat sink additives
US-10377108-B2 · Aug 13, 2019 · US
Polycondensate based water-reducer
US-2019010090-A1 · Jan 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B28/147?
- CPC C04B28/147 is the Cooperative Patent Classification code for “beta-hemihydrate.”
- How many patents are filed under CPC C04B28/147 (beta-hemihydrate)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC C04B28/147 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).