Method for producing haloamines and haloamine solutions
US-12434970-B2 · Oct 7, 2025 · US
Chloramine, i.e. NH2Cl or dichloramine, i.e. NHCl2 · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01B21/091 |
| Official title | {Chloramine, i.e. NH2Cl or dichloramine, i.e. NHCl2} |
| Display label | Chloramine, i.e. NH2Cl or dichloramine, i.e. NHCl2 |
| Total patents | 16 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12434970-B2 · Oct 7, 2025 · US
US-12371334-B2 · Jul 29, 2025 · US
US-2024018000-A1 · Jan 18, 2024 · US
US-11802050-B2 · Oct 31, 2023 · US
US-11649182-B2 · May 16, 2023 · US
US-2022396491-A1 · Dec 15, 2022 · US
US-2021337801-A1 · Nov 4, 2021 · US
US-2020231476-A1 · Jul 23, 2020 · US
US-2020172398-A1 · Jun 4, 2020 · US
US-2019233287-A1 · Aug 1, 2019 · US
US-9790105-B2 · Oct 17, 2017 · US
US-9630847-B2 · Apr 25, 2017 · US
US-2016304360-A1 · Oct 20, 2016 · US
US-9403695-B2 · Aug 2, 2016 · US
US-9388044-B2 · Jul 12, 2016 · US
US-2015021276-A1 · Jan 22, 2015 · US