Method for producing fluorenone
US-2023406800-A1 · Dec 21, 2023 · US
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Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions · 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 | C09B67/0071 |
| Official title | {Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions} |
| Display label | Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 9 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 1 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coloring composition, and color filter
US-2023101363-A1 · Mar 30, 2023 · US
Reversible imine uv-absorbers
US-2022098146-A1 · Mar 31, 2022 · US
Dispersants
US-10399051-B2 · Sep 3, 2019 · US
Fissure-detection agent, method for the production thereof and use of the fissure-detection agent
US-10132759-B2 · Nov 20, 2018 · US
Dispersants
US-2017274335-A1 · Sep 28, 2017 · US
Highly heat-resistant phthalocyanine
US-9580447-B2 · Feb 28, 2017 · US
Colorant compositions and methods of use thereof
US-2017000169-A1 · Jan 5, 2017 · US
Solid solution pigment nanoparticles and method for producing solid solution pigment nanoparticles having controlled solid solution ratio
US-9481694-B2 · Nov 1, 2016 · US
Fissure-Detection Agent, Method For The Production Thereof And Use Of The Fissure-Detection Agent
US-2016252462-A1 · Sep 1, 2016 · US
Liquid tint materials and films made therefrom
US-9382428-B2 · Jul 5, 2016 · US
Azo compound and salt thereof, and dye-based polarizing film and polarizing plate containing the same
US-9341747-B2 · May 17, 2016 · US
Azo compound, dye-based polarizing film and polarizing plate
US-9341746-B2 · May 17, 2016 · US
Azo Compound, Dye-Based Polarizing Film And Polarizing Plate
US-2016109619-A1 · Apr 21, 2016 · US
Azo Compound and Salt Thereof, And Dye-Based Polarizing Film And Polarizing Plate Containing The Same
US-2016103362-A1 · Apr 14, 2016 · US
Azo compound, dye-based polarizing film and polarizing plate
US-9244198-B2 · Jan 26, 2016 · US
Azo compound and salt thereof, and dye-based polarizing film and polarizing plate containing the same
US-9244194-B2 · Jan 26, 2016 · US
Azo Compound And Salt Thereof, And Dye-Based Polarizing Film And Polarizing Plate Containing The Same
US-2015337134-A1 · Nov 26, 2015 · US
Azo Compound, Dye-Based Polarizing Film And Polarizing Plate
US-2015331148-A1 · Nov 19, 2015 · US
Process for preparing photoresponsive hybrid organic-inorganic particles
US-9163145-B2 · Oct 20, 2015 · US