Method for producing phosphoric acid and calcium sulphate quality suitable for a clinker process for the commercial and industrial utilization of calcium sulphate
US-12583747-B2 · Mar 24, 2026 · US
Preparing or treating the raw materials
Preparing or treating the raw materials · 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 | C04B11/005 |
| Official title | {Preparing or treating the raw materials} |
| Display label | Preparing or treating the raw materials |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method Of Forming A Gypsum Panel Including A Starch Layer
US-2025333357-A1 · Oct 30, 2025 · US
Desalination of high chloride salt absorbed porous beads
US-12390791-B2 · Aug 19, 2025 · US
Method of forming a gypsum panel including a starch layer
US-12371371-B2 · Jul 29, 2025 · US
Method and system for measuring phase components in calcium sulphate material
US-2025214892-A1 · Jul 3, 2025 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2024383804-A1 · Nov 21, 2024 · US
Method For Calcining Gypsum and Making a Gypsum Board
US-2024254044-A1 · Aug 1, 2024 · US
Methods for producing stucco compositions useful in making gypsum products
US-2024246855-A1 · Jul 25, 2024 · US
Method of producing a supplementary cementitious material
US-2023406774-A1 · Dec 21, 2023 · US
Conversion of gypsum waste into foamed construction material
US-11840484-B2 · Dec 12, 2023 · US
Method for producing phosphoric acid and calcium sulphate quality suitable for a clinker process for the commercial and industrial utilization of calcium sulphate
US-2023373789-A1 · Nov 23, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2023339807-A1 · Oct 26, 2023 · US
Desalination of high chloride salt absorbed porous beads
US-2023321630-A1 · Oct 12, 2023 · US
Process to make calcium oxide or ordinary Portland cement from calcium bearing rocks and minerals
US-11718558-B2 · Aug 8, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2022411328-A1 · Dec 29, 2022 · US
Conversion of gypsum waste into foamed construction material
US-2022162126-A1 · May 26, 2022 · US
Methods for reclaiming gypsum panels that contain hydrophobic materials and use thereof
US-2021331978-A1 · Oct 28, 2021 · US
Method of Forming a Gypsum Panel Including a Starch Layer
US-2021309571-A1 · Oct 7, 2021 · US
Sizing composition for wet use chopped strand glass fibers
US-11001525-B2 · May 11, 2021 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2021070656-A1 · Mar 11, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B11/005?
- CPC C04B11/005 is the Cooperative Patent Classification code for “Preparing or treating the raw materials.”
- How many patents are filed under CPC C04B11/005 (Preparing or treating the raw materials)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC C04B11/005 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).