Three-dimensional assembled active material from two-dimensional semiconductor flakes for optoelectronic devices
US-2019341249-A1 · Nov 7, 2019 · US
Methods for preparing sulfides or polysulfides, in general (ammonium sulfides or polysulfides C01C; sulfides or polysulfides of metals, other than alkali metals, magnesium, calcium, strontium and barium, see the relevant groups of subclasses C01F or C01G, according to the metal)
Methods for preparing sulfides or polysulfides, in general (ammonium sulfides or polysulfides C01C; sulfides or polysulfides of metals, other than alkali metals, magnesium, calcium, strontium and barium, see the relevant groups of subclasses C01F or C01G, according to the metal) · 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 | C01B17/20 |
| Official title | Methods for preparing sulfides or polysulfides, in general (ammonium sulfides or polysulfides C01C; sulfides or polysulfides of metals, other than alkali metals, magnesium, calcium, strontium and barium, see the relevant groups of subclasses C01F or C01G, according to the metal) |
| Display label | Methods for preparing sulfides or polysulfides, in general (ammonium sulfides or polysulfides C01C; sulfides or polysulfides of metals, other than alkali metals, magnesium, calcium, strontium and barium, see the relevant groups of subclasses C01F or C01G, according to the metal) |
| Total patents | 110 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 8 |
| 2017 | 18 |
| 2018 | 13 |
| 2019 | 11 |
| 2020 | 13 |
| 2021 | 7 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 10 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of forming a porous particle
US-10454100-B2 · Oct 22, 2019 · US
Exfoliation
US-10421875-B2 · Sep 24, 2019 · US
Synthesis of oxygen and boron trihalogenide functionalized two-dimensional layered materials in pressurized medium
US-2019134585-A1 · May 9, 2019 · US
Process for producing quantum dots having broadened optical emission
US-2019085238-A1 · Mar 21, 2019 · US
A method for producing metal nanoparticles and metal sulfide nanoparticles using a recombinant microorganism
US-2019024124-A1 · Jan 24, 2019 · US
Manufacture of organopolysulfides and salts thereof
US-10093619-B2 · Oct 9, 2018 · US
Printing ink and electronic device manufactured by printing with same
US-2018237691-A1 · Aug 23, 2018 · US
Synthesis of luminescent 2d layered materials using an amine-metal complex and a slow sulfur-releasing precursor
US-2018216000-A1 · Aug 2, 2018 · US
Sulfide solid electrolyte material, battery, and producing method for sulfide solid electrolyte material
US-10033065-B2 · Jul 24, 2018 · US
Method of preparing sulfide-based solid electrolyte having excellent air stability
US-10020536-B2 · Jul 10, 2018 · US
Method for preparing phase-separated lead telluride-lead sulfide nanopowder using solution synthesis and phase-separated lead telluride-lead sulfide nanopowder prepared thereby
US-2018185925-A1 · Jul 5, 2018 · US
System and method for controlling frothing during atmospheric leaching of metal sulphides using silicates
US-10000389-B2 · Jun 19, 2018 · US
Manufacture of organopolysulfides and salts thereof
US-2018162810-A1 · Jun 14, 2018 · US
Method for manufacturing two-dimensional transition metal dichalcogemide thin film
US-2018105930-A1 · Apr 19, 2018 · US
Methods for preparation of nanocrystals using a weak electron transfer agent and mismatched shell precursors
US-9937560-B2 · Apr 10, 2018 · US
Nanoparticles passivated with cationic metal-chalcogenide compound
US-2018093892-A1 · Apr 5, 2018 · US
Lithium-ion conductive sulfide, solid electrolyte secondary battery and battery pack
US-9929434-B2 · Mar 27, 2018 · US
Method of preparing sulfide-based solid electrolyte having excellent air stability
US-2018053966-A1 · Feb 22, 2018 · US
Nanoparticles passivated with cationic metal-chalcogenide compound
US-9850130-B2 · Dec 26, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B17/20?
- CPC C01B17/20 is the Cooperative Patent Classification code for “Methods for preparing sulfides or polysulfides, in general (ammonium sulfides or polysulfides C01C; sulfides or polysulfides of metals, other than alkali metals, magnesium, calcium, strontium and barium, see the relevant groups of subclasses C01F or C01G, according to the metal).”
- How many patents are filed under CPC C01B17/20 (Methods for preparing sulfides or polysulfides, in general (ammonium sulfides or polysulfides C01C; sulfides or polysulfides of metals, other than alkali metals, magnesium, calcium, strontium and barium, see the relevant groups of subclasses C01F or C01G, according to the metal))?
- Our database includes 110 publications tagged with this CPC code.
- Is patent activity under CPC C01B17/20 growing?
- Publication counts under this code: 4 in 2024 vs 10 in 2025 (latest complete years).