Charge modified chitosan cross-linked encapsulate
US-2025360088-A1 · Nov 27, 2025 · US
Protected perfumes
Protected perfumes · 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 | C11D3/502 |
| Official title | {Protected perfumes} |
| Display label | Protected perfumes |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 10 |
| 2022 | 7 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 5 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sealing jaws and water-soluble unit dose article comprising a fibrous non-woven sheet
US-12466591-B2 · Nov 11, 2025 · US
Particulate fabric care composition
US-2025313779-A1 · Oct 9, 2025 · US
Concentrated fabric conditioner
US-2025122445-A1 · Apr 17, 2025 · US
Process of making a salted spray-dried perfume microcapsule particle
US-2024316523-A1 · Sep 26, 2024 · US
Treatment composition with delivery particles made from redox-initiator-treated chitosan
US-2024182818-A1 · Jun 6, 2024 · US
Sealing jaws and water-soluble unit dose article comprising a fibrous non-woven sheet
US-2024158114-A1 · May 16, 2024 · US
Fragrance materials
US-11844854-B2 · Dec 19, 2023 · US
A fragrance composition
US-2023159854-A1 · May 25, 2023 · US
Fragrance premix composition comprising a silicone polymer and aminofunctional material
US-11618864-B2 · Apr 4, 2023 · US
Fragrance premix compositions and related consumer products
US-2023037431-A1 · Feb 9, 2023 · US
Method of making a cleaning composition
US-11485940-B2 · Nov 1, 2022 · US
Perfume particles for laundry composition
US-11414630-B2 · Aug 16, 2022 · US
Friable shell microcapsules, process for preparing the same and method of use thereof
US-11396000-B2 · Jul 26, 2022 · US
Microwave assisted extraction of essential oils from plant biomass
US-2022175003-A1 · Jun 9, 2022 · US
Organic compounds
US-11351096-B2 · Jun 7, 2022 · US
Perfume-Containing Shaped Body
US-2022142332-A1 · May 12, 2022 · US
Solid and liquid textile-treating compositions
US-11292990-B2 · Apr 5, 2022 · US
Compounds for a controlled release of active perfuming molecules
US-2021395654-A1 · Dec 23, 2021 · US
Gels comprising a hydrophobic material
US-11173224-B2 · Nov 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C11D3/502?
- CPC C11D3/502 is the Cooperative Patent Classification code for “Protected perfumes.”
- How many patents are filed under CPC C11D3/502 (Protected perfumes)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC C11D3/502 growing?
- Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).