Gypsum panel containing ammonium-exchanged vermiculite and methods
US-12448328-B2 · Oct 21, 2025 · US
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Mixtures thereof with other inorganic cementitious materials (C04B7/04, C04B7/153 take precedence)
Mixtures thereof with other inorganic cementitious materials (C04B7/04, C04B7/153 take precedence) · 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 | C04B11/28 |
| Official title | Mixtures thereof with other inorganic cementitious materials (C04B7/04, C04B7/153 take precedence) |
| Display label | Mixtures thereof with other inorganic cementitious materials (C04B7/04, C04B7/153 take precedence) |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rock similar material satisfying water-induced strength degradation characteristic and preparation method and use thereof
US-11802084-B2 · Oct 31, 2023 · US
Gypsum panel containing ammonium-exchanged vermiculite and methods
US-2023250019-A1 · Aug 10, 2023 · US
Rock similar material satisfying water-induced strength degradation characteristic and preparation method and use thereof
US-2023167026-A1 · Jun 1, 2023 · US
Struvite-K and syngenite composition for use in building materials
US-11161783-B2 · Nov 2, 2021 · US
Struvite-K and Syngenite Composition for Use in Building Materials
US-2020079691-A1 · Mar 12, 2020 · US
Struvite-K and Syngenite composition for use in building materials
US-10479728-B2 · Nov 19, 2019 · US
Struvite-K and Syngenite composition for use in building materials
US-10472284-B2 · Nov 12, 2019 · US
Dimensionally stable geopolymer composition and method
US-10392307-B2 · Aug 27, 2019 · US
Dimensionally stable geopolymer composition and method
US-9890082-B2 · Feb 13, 2018 · US
Dimensionally stable geopolymer composition and method
US-2017174570-A1 · Jun 22, 2017 · US
Dimensionally stable geopolymer composition and method
US-9656916-B2 · May 23, 2017 · US
Struvite-K and Syngenite Composition for Use in Building Materials
US-2017008804-A1 · Jan 12, 2017 · US
Struvite-K and syngenite composition for use in building materials
US-9422193-B2 · Aug 23, 2016 · US
Struvite-K and Syngenite Composition for Use in Building Materials
US-2016236979-A1 · Aug 18, 2016 · US
Dimensionally stable geopolymer composition and method
US-2016214897-A1 · Jul 28, 2016 · US
Biomass derived grinding aids
US-9328021-B2 · May 3, 2016 · US
Biomass-Derived Grinding Aids
US-2016068437-A1 · Mar 10, 2016 · US
Biomass-derived grinding aids
US-8979998-B2 · Mar 17, 2015 · US
Struvite-K and Syngenite Composition for Use in Building Materials
US-2015059621-A1 · Mar 5, 2015 · US