Particulate laundry softening wash additive
US-2025382546-A1 · Dec 18, 2025 · US
Nitrates or nitrites
Nitrates or nitrites · 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 | C11D3/048 |
| Official title | {Nitrates or nitrites} |
| Display label | Nitrates or nitrites |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 6 |
| 2022 | 3 |
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Particulate laundry softening wash additive
US-2025382552-A1 · Dec 18, 2025 · US
Stable enzyme solutions and method of manufacturing
US-11827866-B2 · Nov 28, 2023 · US
Personal care compositions
US-11690833-B2 · Jul 4, 2023 · US
Boric acid-free composition for removing deposits containing cryolite
US-11434573-B2 · Sep 6, 2022 · US
Photoresist stripper
US-11353794-B2 · Jun 7, 2022 · US
Efficient post-cmp defect reduction using cleaners containing oxidizing agents
US-2022098530-A1 · Mar 31, 2022 · US
Boric acid-free composition for removing deposits containing cryolite
US-2020385872-A1 · Dec 10, 2020 · US
Personal Care Compositions
US-2020316044-A1 · Oct 8, 2020 · US
Enzyme Slurry Composition
US-2020181542-A1 · Jun 11, 2020 · US
Stable Enzyme Solutions and Method of Manufacturing
US-2020181541-A1 · Jun 11, 2020 · US
Stable enzyme solutions and method of manufacturing
US-10590368-B2 · Mar 17, 2020 · US
Water-soluble unit dose articles comprising water-soluble fibrous structures and particles
US-2020032178-A1 · Jan 30, 2020 · US
Photoresist Stripper
US-2019196337-A1 · Jun 27, 2019 · US
Liquid composition for cleaning semiconductor device, method for cleaning semiconductor device, and method for fabricating semiconductor device
US-10301581-B2 · May 28, 2019 · US
Targeted performance of hypohalite methods thereof
US-2018355289-A1 · Dec 13, 2018 · US
Targeted performance of hypohalite methods thereof
US-10066193-B2 · Sep 4, 2018 · US
Enzyme-containing washing or cleaning composition comprising calcium nitrate
US-10005987-B2 · Jun 26, 2018 · US
Cleaning composition, cleaning process, and process for producing semiconductor device
US-9726978-B2 · Aug 8, 2017 · US
Liquid composition for cleaning semiconductor device, method for cleaning semiconductor device, and method for fabricating semiconductor device
US-2017101607-A1 · Apr 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C11D3/048?
- CPC C11D3/048 is the Cooperative Patent Classification code for “Nitrates or nitrites.”
- How many patents are filed under CPC C11D3/048 (Nitrates or nitrites)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC C11D3/048 growing?
- Publication counts under this code: 2 in 2023 vs 2 in 2025 (latest complete years).