Contact lens
US-12164182-B2 · Dec 10, 2024 · US
This page is not indexed by search engines while we improve data quality.
Dyes with no other substituents than the amino groups
Dyes with no other substituents than the amino groups · 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 | C09B1/325 |
| Official title | {Dyes with no other substituents than the amino groups} |
| Display label | Dyes with no other substituents than the amino groups |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Contact lens
US-2022075210-A1 · Mar 10, 2022 · US
Process for printing cellulose containing textile fibre material
US-11008700-B2 · May 18, 2021 · US
Colored resin composition exhibiting pleochroism, and molded plastics manufactured using same
US-10472495-B2 · Nov 12, 2019 · US
Colored Resin Composition Exhibiting Pleochroism, and Molded Plastics Manufactured Using Same
US-2018127566-A1 · May 10, 2018 · US
Colored resin composition exhibiting pleochroism, and molded plastics manufactured using same
US-9868849-B2 · Jan 16, 2018 · US
Anthraquinone compound used for color filter of lcd
US-2017137625-A1 · May 18, 2017 · US
Thermal transfer recording sheet
US-9592695-B2 · Mar 14, 2017 · US
Anthraquinone dye used for a color filter of a lcd
US-2016355684-A1 · Dec 8, 2016 · US
Thermal transfer recording sheet
US-9481192-B2 · Nov 1, 2016 · US
Thermal transfer recording sheet
US-2015367665-A1 · Dec 24, 2015 · US
Thermal transfer recording sheet
US-2015360495-A1 · Dec 17, 2015 · US