Rapid-hardening cement composition
US-10800701-B2 · Oct 13, 2020 · US
Calcium-sulfate
Calcium-sulfate · 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 | C04B22/143 |
| Official title | {Calcium-sulfate} |
| Display label | Calcium-sulfate |
| Total patents | 108 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 3 |
| 2017 | 15 |
| 2018 | 15 |
| 2019 | 9 |
| 2020 | 14 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 10 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Self-consolidating geopolymer compositions and methods for making same
US-2020231503-A1 · Jul 23, 2020 · US
High noise reduction coefficient, low density acoustical tiles
US-10696594-B2 · Jun 30, 2020 · US
Fly ash cementitious compositions
US-10647612-B2 · May 12, 2020 · US
Dimensionally stable geopolymer composition and method
US-10597327-B2 · Mar 24, 2020 · US
Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability
US-10584061-B2 · Mar 10, 2020 · US
Early strength enhancing concrete admixture
US-10577284-B2 · Mar 3, 2020 · US
Geopolymer compositions and methods for making same
US-2020039884-A1 · Feb 6, 2020 · US
Inorganic Foam Based On Calcium Sulfoaluminate
US-2020024201-A1 · Jan 23, 2020 · US
Cement compositions having fast setting times and high compressive strengths
US-10487256-B2 · Nov 26, 2019 · US
Hydrophobic finish compositions with extended flow time retention and building products made thereof
US-10399898-B2 · Sep 3, 2019 · US
Dimensionally stable geopolymer composition and method
US-10392307-B2 · Aug 27, 2019 · US
Additive-incorporated building materials
US-10315953-B2 · Jun 11, 2019 · US
Compositions and method to improve the strength development of calcium silicate-based cements and concretes
US-2019152859-A1 · May 23, 2019 · US
Hydration control mixture for mortar and cement compositions
US-2019119163-A1 · Apr 25, 2019 · US
Dimensionally stable geopolymer composition and method
US-10221096-B2 · Mar 5, 2019 · US
Composition for a pasty filler material, pasty filler, and method for producing a pasty filler material
US-2019002346-A1 · Jan 3, 2019 · US
Quick-drying building material composition based on a mineral hybrid binder
US-10167229-B2 · Jan 1, 2019 · US
Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability
US-2018362407-A1 · Dec 20, 2018 · US
Hydrophobic finish compositions with extended flow time retention and building products made thereof
US-10155692-B2 · Dec 18, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B22/143?
- CPC C04B22/143 is the Cooperative Patent Classification code for “Calcium-sulfate.”
- How many patents are filed under CPC C04B22/143 (Calcium-sulfate)?
- Our database includes 108 publications tagged with this CPC code.
- Is patent activity under CPC C04B22/143 growing?
- Publication counts under this code: 10 in 2024 vs 6 in 2025 (latest complete years).