Detergent compositions for cleaning in the cosmetic and pharmaceutical industry
US-2024002749-A1 · Jan 4, 2024 · US
Sulfuric acid esters
Sulfuric acid esters · 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 | C11D1/146 |
| Official title | {Sulfuric acid esters} |
| Display label | Sulfuric acid esters |
| Total patents | 829 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 31 |
| 2016 | 46 |
| 2017 | 57 |
| 2018 | 82 |
| 2019 | 80 |
| 2020 | 84 |
| 2021 | 67 |
| 2022 | 72 |
| 2023 | 101 |
| 2024 | 83 |
| 2025 | 93 |
| 2026 | 33 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cleaning composition
US-2024002751-A1 · Jan 4, 2024 · US
Compacted liquid laundry detergent composition
US-2016355752-A1 · Dec 8, 2016 · US
Surface cleaning apparatus
US-2016353963-A1 · Dec 8, 2016 · US
Method of making surfactant compositions and detergent compositions
US-2016340611-A1 · Nov 24, 2016 · US
Surfactant and detergent compositions containing ethoxylated glycerine
US-2016340625-A1 · Nov 24, 2016 · US
Cleaning composition comprising amylase variants with high stability in the presence of a chelating agent
US-9493730-B2 · Nov 15, 2016 · US
Detergent compositions containing a predominantly C15 alkyl branched surfactant
US-9493725-B2 · Nov 15, 2016 · US
Detergent compositions containing a predominantly C15 branched alkyl alkoxylated surfactant
US-9493726-B2 · Nov 15, 2016 · US
Method of treating a fabric
US-2016319226-A1 · Nov 3, 2016 · US
Pearlescent cleansing compositions
US-2016319222-A1 · Nov 3, 2016 · US
Acidic viscoelastic surfactant based cleaning compositions
US-2016319221-A1 · Nov 3, 2016 · US
Lather-forming tissue paper product
US-2016304818-A1 · Oct 20, 2016 · US
Pourable detergent composition comprising aryl sulfonate suspended particles
US-9453191-B2 · Sep 27, 2016 · US
Acidic viscoelastic surfactant based cleaning compositions
US-9410112-B2 · Aug 9, 2016 · US
Betaines with special fatty acid chain distribution
US-2016221935-A1 · Aug 4, 2016 · US
Cleansing composition
US-2016213594-A1 · Jul 28, 2016 · US
Processes and compositions for cleaning mixing devices to improve polymer production
US-2016186104-A1 · Jun 30, 2016 · US
Liquid detergent composition
US-2016177224-A1 · Jun 23, 2016 · US
Detergent composition
US-2016177237-A1 · Jun 23, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C11D1/146?
- CPC C11D1/146 is the Cooperative Patent Classification code for “Sulfuric acid esters.”
- How many patents are filed under CPC C11D1/146 (Sulfuric acid esters)?
- Our database includes 829 publications tagged with this CPC code.
- Is patent activity under CPC C11D1/146 growing?
- Publication counts under this code: 83 in 2024 vs 93 in 2025 (latest complete years).