Preparation from sulfides, oxysulfides or polysulfides · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01B17/165 |
| Official title | {Preparation from sulfides, oxysulfides or polysulfides} |
| Display label | Preparation from sulfides, oxysulfides or polysulfides |
| Total patents | 21 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 5 |
| 2023 | 1 |
| 2024 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11932479-B2 · Mar 19, 2024 · US
US-2024060199-A1 · Feb 22, 2024 · US
US-2023035172-A1 · Feb 2, 2023 · US
US-2021323819-A1 · Oct 21, 2021 · US
US-2021269231-A1 · Sep 2, 2021 · US
US-11104642-B2 · Aug 31, 2021 · US
US-11072529-B2 · Jul 27, 2021 · US
US-11034583-B2 · Jun 15, 2021 · US
US-2020331851-A1 · Oct 22, 2020 · US
US-10689334-B2 · Jun 23, 2020 · US
US-2019270642-A1 · Sep 5, 2019 · US
US-10125408-B2 · Nov 13, 2018 · US
US-2018319662-A1 · Nov 8, 2018 · US
US-10059588-B2 · Aug 28, 2018 · US
US-2018105896-A1 · Apr 19, 2018 · US
US-9884291-B2 · Feb 6, 2018 · US
US-9677018-B2 · Jun 13, 2017 · US
US-2017158631-A1 · Jun 8, 2017 · US
US-2017096337-A1 · Apr 6, 2017 · US
US-2017036163-A1 · Feb 9, 2017 · US