Near neutral pH pickle on multi-metals
US-10443135-B1 · Oct 15, 2019 · US
containing nitrogen
containing nitrogen · 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 | C11D7/32 |
| Official title | containing nitrogen |
| Display label | containing nitrogen |
| Total patents | 209 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 11 |
| 2017 | 16 |
| 2018 | 16 |
| 2019 | 19 |
| 2020 | 22 |
| 2021 | 17 |
| 2022 | 28 |
| 2023 | 26 |
| 2024 | 23 |
| 2025 | 11 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Post chemical mechanical polishing formulations and method of use
US-10351809-B2 · Jul 16, 2019 · US
Method of manufacturing a semiconductor device and a cleaning composition for an adhesive layer
US-2019198315-A1 · Jun 27, 2019 · US
Aqueous solution containing combination of complexing agents
US-10160937-B2 · Dec 25, 2018 · US
Process for manufacturing granules
US-2018355285-A1 · Dec 13, 2018 · US
Aqueous formulations with good storage capabilities
US-2018312782-A1 · Nov 1, 2018 · US
Cleaning composition following CMP and methods related thereto
US-10100272-B2 · Oct 16, 2018 · US
Multiuse, enzymatic detergent and methods of stabilizing a use solution
US-2018282668-A1 · Oct 4, 2018 · US
Post chemical mechanical polishing formulations and method of use
US-2018251712-A1 · Sep 6, 2018 · US
Semiconductor element cleaning liquid and cleaning method
US-10035978-B2 · Jul 31, 2018 · US
Multiuse, enzymatic detergent and methods of stabilizing a use solution
US-10011808-B2 · Jul 3, 2018 · US
Compositions, systems, and methods for removing iron sulfide scale from oilfield components
US-2018169714-A1 · Jun 21, 2018 · US
Agent, liquid, and method for cleaning reverse osmosis membrane
US-2018169585-A1 · Jun 21, 2018 · US
Cleaning industrial plant components to remove metal halides
US-9994802-B2 · Jun 12, 2018 · US
Oral Care Compositions and Methods for Anti-Attachment Polymers and Coatings
US-2018110228-A1 · Apr 26, 2018 · US
Compositions, systems, and methods for removing iron sulfide scale from oilfield components
US-9919348-B2 · Mar 20, 2018 · US
Methods of reducing metal residue in edge bead region from metal-containing resists
US-2018046086-A1 · Feb 15, 2018 · US
Cleaning agent for semiconductor substrates and method for processing semiconductor substrate surface
US-9862914-B2 · Jan 9, 2018 · US
Aqueous solution containing combination of complexing agents
US-2018002643-A1 · Jan 4, 2018 · US
Aqueous solutions containing a complexing agent in high concentration
US-9850453-B2 · Dec 26, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C11D7/32?
- CPC C11D7/32 is the Cooperative Patent Classification code for “containing nitrogen.”
- How many patents are filed under CPC C11D7/32 (containing nitrogen)?
- Our database includes 209 publications tagged with this CPC code.
- Is patent activity under CPC C11D7/32 growing?
- Publication counts under this code: 23 in 2024 vs 11 in 2025 (latest complete years).