Gas purification apparatus and gas purification method
US-9845438-B2 · Dec 19, 2017 · US
Gas withdrawal means · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C10J3/82 |
| Official title | Gas withdrawal means |
| Display label | Gas withdrawal means |
| Total patents | 173 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 23 |
| 2016 | 20 |
| 2017 | 28 |
| 2018 | 21 |
| 2019 | 22 |
| 2020 | 18 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 12 |
| 2024 | 10 |
| 2025 | 8 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-9845438-B2 · Dec 19, 2017 · US
US-2017349435-A1 · Dec 7, 2017 · US
US-2017342327-A1 · Nov 30, 2017 · US
US-2017342339-A1 · Nov 30, 2017 · US
US-2017327435-A1 · Nov 16, 2017 · US
US-2017313951-A1 · Nov 2, 2017 · US
US-9739539-B2 · Aug 22, 2017 · US
US-2017197827-A1 · Jul 13, 2017 · US
US-2017183580-A1 · Jun 29, 2017 · US
US-2017183576-A1 · Jun 29, 2017 · US
US-2017175149-A1 · Jun 22, 2017 · US
US-9624143-B2 · Apr 18, 2017 · US
US-9575479-B2 · Feb 21, 2017 · US
US-2017037320-A1 · Feb 9, 2017 · US
US-9562201-B2 · Feb 7, 2017 · US
US-9562472-B2 · Feb 7, 2017 · US
US-9550949-B2 · Jan 24, 2017 · US
US-2016376513-A1 · Dec 29, 2016 · US
US-9528049-B2 · Dec 27, 2016 · US
US-9528055-B2 · Dec 27, 2016 · US
Answers are generated from the same data shown on this page.