Environment-friendly water-based treatment agent for improving phosphatability of high-strength steel
US-2026055511-A1 · Feb 26, 2026 · US
containing also zinc and nickel cations · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C23C22/365 |
| Official title | {containing also zinc and nickel cations} |
| Display label | containing also zinc and nickel cations |
| Total patents | 22 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026055511-A1 · Feb 26, 2026 · US
US-2025354269-A1 · Nov 20, 2025 · US
US-12203173-B2 · Jan 21, 2025 · US
US-11643731-B2 · May 9, 2023 · US
US-11492707-B2 · Nov 8, 2022 · US
US-11486044-B2 · Nov 1, 2022 · US
US-11479865-B2 · Oct 25, 2022 · US
US-2022119957-A1 · Apr 21, 2022 · US
US-11124880-B2 · Sep 21, 2021 · US
US-2021062346-A1 · Mar 4, 2021 · US
US-10738383-B2 · Aug 11, 2020 · US
US-2020199758-A1 · Jun 25, 2020 · US
US-2020032403-A1 · Jan 30, 2020 · US
US-2020032402-A1 · Jan 30, 2020 · US
US-2019127854-A1 · May 2, 2019 · US
US-2018334748-A9 · Nov 22, 2018 · US
US-2018112314-A1 · Apr 26, 2018 · US
US-2018112313-A1 · Apr 26, 2018 · US
US-9879349-B2 · Jan 30, 2018 · US
US-9550208-B2 · Jan 24, 2017 · US