Low voc ionic solvents as dye carriers for aramid fibers
US-2026022247-A1 · Jan 22, 2026 · US
containing quaternary ammonium groups
containing quaternary ammonium groups · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D06P1/66 |
| Official title | containing quaternary ammonium groups |
| Display label | containing quaternary ammonium groups |
| Total patents | 49 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 10 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 7 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Textile printing pretreatment liquid, textile printing ink set, ink jet textile printing method, printed textile, and onium salt compound
US-2025382488-A1 · Dec 18, 2025 · US
Textile printing pretreatment liquid, textile printing ink set, ink jet textile printing method, printed textile, and onium salt compound
US-12421412-B2 · Sep 23, 2025 · US
One step dyeing process of a polyester/natural fiber blended fabric
US-12325955-B2 · Jun 10, 2025 · US
One step dyeing process of a polyester/natural fiber blended fabric
US-2024368832-A1 · Nov 7, 2024 · US
Application of deep eutectic solvent in textile dyeing
US-12123134-B2 · Oct 22, 2024 · US
Image forming pretreatment liquid, ink set, and image forming method
US-2024254358-A1 · Aug 1, 2024 · US
Dye recycling methods
US-2024133117-A1 · Apr 25, 2024 · US
Set of ink and treatment agent, and recording method
US-11912885-B2 · Feb 27, 2024 · US
Aqueous inks comprising capsules stabilised by cationic dispersing groups
US-11884829-B2 · Jan 30, 2024 · US
Pretreatment agent for inkjet textile printing and inkjet textile printing method
US-2024026605-A1 · Jan 25, 2024 · US
Application of Deep Eutectic Solvent in Textile Dyeing
US-2023175201-A1 · Jun 8, 2023 · US
Ink jet textile printing ink set, ink jet textile printing system, and ink jet textile printing method
US-11667800-B2 · Jun 6, 2023 · US
Pad-steam cationization of textiles
US-2023089849-A1 · Mar 23, 2023 · US
Pad-dry cationization of textiles
US-2023071562-A1 · Mar 9, 2023 · US
Bio-ink compositions, environmentally-sensitive objects, and methods of making the same
US-2022267621-A1 · Aug 25, 2022 · US
Textile printing pretreatment liquid, textile printing ink set, ink jet textile printing method, printed textile, and onium salt compound
US-2022213343-A1 · Jul 7, 2022 · US
Fabric treatment compositions
US-2022145532-A1 · May 12, 2022 · US
Printable fabric media
US-2022127786-A1 · Apr 28, 2022 · US
Aqueous inks comprising capsules stabilised by cationic dispersing groups
US-2022002568-A1 · Jan 6, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D06P1/66?
- CPC D06P1/66 is the Cooperative Patent Classification code for “containing quaternary ammonium groups.”
- How many patents are filed under CPC D06P1/66 (containing quaternary ammonium groups)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC D06P1/66 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).