Extended-Life Settable Compositions Comprising Red Mud
US-2017369762-A1 · Dec 28, 2017 · US
Set retarders
Set retarders · 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 | C04B2103/22 |
| Official title | Set retarders |
| Display label | Set retarders |
| Total patents | 270 |
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 | 6 |
| 2016 | 20 |
| 2017 | 36 |
| 2018 | 37 |
| 2019 | 30 |
| 2020 | 32 |
| 2021 | 29 |
| 2022 | 27 |
| 2023 | 23 |
| 2024 | 16 |
| 2025 | 11 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Transportation and delivery of set-delayed cement compositions
US-9850419-B2 · Dec 26, 2017 · US
Method for preparing hydraulic composition
US-2017355646-A1 · Dec 14, 2017 · US
Hydrophobic low shrinkage lightweight cementitious matrix
US-9840440-B2 · Dec 12, 2017 · US
Geopolymer cement compositions and methods of use
US-9840653-B2 · Dec 12, 2017 · US
Cable or cable accessory comprising a fire-resistant layer
US-2017345528-A1 · Nov 30, 2017 · US
Foaming of set-delayed cement compositions comprising pumice and hydrated lime
US-9828541-B2 · Nov 28, 2017 · US
Compositions containing kiln dust and/or biowaste ash and methods of use
US-9809737-B2 · Nov 7, 2017 · US
Treatment fluids comprising calcium aluminate cement and methods of use
US-2017313926-A1 · Nov 2, 2017 · US
Combined Set-Delayed Cement Compositions
US-2017306213-A1 · Oct 26, 2017 · US
In situ refractory binder compositions
US-9796903-B2 · Oct 24, 2017 · US
Use of MEMS in set-delayed cement compositions comprising pumice
US-9796904-B2 · Oct 24, 2017 · US
Set-delayed cement compositions comprising pumice and associated methods
US-9790132-B2 · Oct 17, 2017 · US
Extended-life calcium aluminate cementing methods
US-2017283682-A1 · Oct 5, 2017 · US
Cement blends including inert microparticles
US-9771772-B2 · Sep 26, 2017 · US
Chemical additive for calcium sulphoaluminate-modified portland cement
US-2017267593-A1 · Sep 21, 2017 · US
Liquid anti-shrinkage agent for cement
US-2017240793-A1 · Aug 24, 2017 · US
Methods for maintaining zonal isolation in a subterranean well
US-2017174977-A1 · Jun 22, 2017 · US
Dimensionally stable geopolymer composition and method
US-2017174571-A1 · Jun 22, 2017 · US
Sealant compositions comprising cement kiln dust and tire-rubber particles and method of use
US-9676989-B2 · Jun 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2103/22?
- CPC C04B2103/22 is the Cooperative Patent Classification code for “Set retarders.”
- How many patents are filed under CPC C04B2103/22 (Set retarders)?
- Our database includes 270 publications tagged with this CPC code.
- Is patent activity under CPC C04B2103/22 growing?
- Publication counts under this code: 16 in 2024 vs 11 in 2025 (latest complete years).