Pretreatment apparatus, pretreatment method, producing method, and aqueous solution
US-12403710-B2 · Sep 2, 2025 · US
Nitrogen-containing carboxylic acids or their salts
Nitrogen-containing carboxylic acids or their salts · 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 | D06P1/647 |
| Official title | Nitrogen-containing carboxylic acids or their salts |
| Display label | Nitrogen-containing carboxylic acids or their salts |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 9 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Textile printing ink
US-12157972-B2 · Dec 3, 2024 · US
Composition, pretreatment agent set, pretreatment method, and image forming method
US-2024287733-A1 · Aug 29, 2024 · US
Ink set
US-2024182738-A1 · Jun 6, 2024 · US
Ink fluid set for printing on textile
US-11993893-B2 · May 28, 2024 · US
Pretreatment apparatus, pretreatment method, producing method, and aqueous solution
US-2023322006-A1 · Oct 12, 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
Textile printing ink
US-2023002967-A1 · Jan 5, 2023 · US
Aqueous inkjet inks containing a water-insoluble additive
US-11499065-B2 · Nov 15, 2022 · US
Inkjet textile printing treatment liquid, inkjet textile printing apparatus, inkjet textile printing method, and textile print
US-2022349122-A1 · Nov 3, 2022 · US
Ink fluid set for printing on textile
US-2022333301-A1 · Oct 20, 2022 · US
Methods, compositions and uses relating thereto
US-11311471-B2 · Apr 26, 2022 · US
Methods, compositions and uses relating thereto
US-11234917-B2 · Feb 1, 2022 · US
Thermal inkjet dye sublimation inks
US-11066567-B2 · Jul 20, 2021 · US
Cyan thermal inkjet dye sublimation inks
US-2021071023-A1 · Mar 11, 2021 · US
Stabilization of sodium dithionite by means of various additives
US-10850982-B2 · Dec 1, 2020 · US
Thermal inkjet dye sublimation inks
US-2020369899-A1 · Nov 26, 2020 · US
Aqueous inkjet inks containing a water-insoluble additive
US-2020308434-A1 · Oct 1, 2020 · US
Ink jet textile printing ink set, ink jet textile printing system, and ink jet textile printing method
US-2020207998-A1 · Jul 2, 2020 · US
Ink jet textile printing ink composition and ink receiving container
US-10676626-B2 · Jun 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D06P1/647?
- CPC D06P1/647 is the Cooperative Patent Classification code for “Nitrogen-containing carboxylic acids or their salts.”
- How many patents are filed under CPC D06P1/647 (Nitrogen-containing carboxylic acids or their salts)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC D06P1/647 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).