Low voc ionic solvents as dye carriers for aramid fibers
US-2026022247-A1 · Jan 22, 2026 · US
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Compounds containing ammonium groups
Compounds containing 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 | D06P1/655 |
| Official title | Compounds containing ammonium groups |
| Display label | Compounds containing ammonium groups |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Textile printing ink set and textile printing method
US-12486422-B2 · Dec 2, 2025 · US
Set of inkjet inks, inkjet image forming method, and inkjet image forming apparatus
US-12221549-B2 · Feb 11, 2025 · US
Set of ink and treatment agent, and recording method
US-11912885-B2 · Feb 27, 2024 · US
Set of inkjet inks, inkjet image forming method, and inkjet image forming apparatus
US-2023132661-A1 · May 4, 2023 · US
Low-friction images by inkjet printing
US-11629265-B2 · Apr 18, 2023 · US
Ink jet textile printing ink and ink jet textile printing method
US-2023027364-A1 · Jan 26, 2023 · US
Textile printing ink set and textile printing method
US-2022177721-A1 · Jun 9, 2022 · US
Fabric treatment compositions
US-2022154394-A1 · May 19, 2022 · US
Inkjet ink set comprising a cationic and an anionic ink
US-2021403740-A1 · Dec 30, 2021 · US
Treatment agent and ink set
US-11001964-B2 · May 11, 2021 · US
Low-friction images by inkjet printing
US-2021130635-A1 · May 6, 2021 · US
Treatment agent for image recording, set including ink and treatment agent for image recording, and recording method
US-10857805-B2 · Dec 8, 2020 · US
Treatment agent for image recording, set of ink and treatment agent for image recording, and recording method
US-10774468-B2 · Sep 15, 2020 · US
Set of Ink and Treatment Agent, and Recording Method
US-2019300743-A1 · Oct 3, 2019 · US
Set Including Inks and Treatment Agent, and Recording Method
US-2019300742-A1 · Oct 3, 2019 · US
Treatment Agent For Image Recording, Set Including Ink and Treatment Agent For Image Recording, and Recording Method
US-2019301084-A1 · Oct 3, 2019 · US
Treatment Agent For Image Recording, Set Of Ink and Treatment Agent For Image Recording, and Recording Method
US-2019301085-A1 · Oct 3, 2019 · US
Treatment Agent and Ink Set
US-2019100871-A1 · Apr 4, 2019 · US
Method for colour-fixing processing of textile and device therefor
US-9920473-B2 · Mar 20, 2018 · US