DHSV scale removal method in the production string
US-12577118-B2 · Mar 17, 2026 · US
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Carbonates or bicarbonates of ammonium
Carbonates or bicarbonates of ammonium · 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 | C01C1/26 |
| Official title | Carbonates or bicarbonates of ammonium |
| Display label | Carbonates or bicarbonates of ammonium |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Treatment of subterranean formations
US-12552982-B2 · Feb 17, 2026 · US
Method for producing a sncr/scr solution
US-2025084032-A1 · Mar 13, 2025 · US
Treatment of subterranean formations
US-2024352306-A1 · Oct 24, 2024 · US
Treatment of subterranean formations
US-12060522-B2 · Aug 13, 2024 · US
Process for desorption of ammonia chemical species using carbon dioxide, ammonia chemical species-providing agent, and apparatus for adsorption and desorption of ammonia chemical species
US-12023648-B2 · Jul 2, 2024 · US
Treatment of subterranean formations
US-11987751-B2 · May 21, 2024 · US
Treatment of subterranean formations
US-11753583-B2 · Sep 12, 2023 · US
Treatment of subterranean formations
US-11739256-B2 · Aug 29, 2023 · US
Dhsv scale removal method in the production string
US-2023054645-A1 · Feb 23, 2023 · US
Formic acid formation from a carbon dioxide source
US-2022324785-A1 · Oct 13, 2022 · US
Treatment of subterranean formations
US-2022127521-A1 · Apr 28, 2022 · US
Treatment of subterranean formations
US-2022127522-A1 · Apr 28, 2022 · US
Treatment of subterranean formations
US-2022127520-A1 · Apr 28, 2022 · US
Treatment of subterranean formations
US-2022127519-A1 · Apr 28, 2022 · US
Process for desorption of ammonia chemical species using carbon dioxide, ammonia chemical species-providing agent, and apparatus for adsorption and desorption of ammonia chemical species
US-2021387164-A1 · Dec 16, 2021 · US
Process and system to capture ammonia from a purge gas of a urea plant
US-10927012-B2 · Feb 23, 2021 · US
Solutions formed from ammonium carbonate/bicarbonate and ammonium hydroxide
US-2020398233-A1 · Dec 24, 2020 · US
Dual system process for ammonia vapor recovery
US-10843123-B2 · Nov 24, 2020 · US
A process and system to capture ammonia from a purge gas of a urea plant
US-2019375649-A1 · Dec 12, 2019 · US