the hollow pump or motor shaft being the conduit for the working fluid · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04D13/0646 |
| Official title | {the hollow pump or motor shaft being the conduit for the working fluid} |
| Display label | the hollow pump or motor shaft being the conduit for the working fluid |
| Total patents | 153 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 20 |
| 2020 | 16 |
| 2021 | 15 |
| 2022 | 16 |
| 2023 | 20 |
| 2024 | 18 |
| 2025 | 19 |
| 2026 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-10876534-B2 · Dec 29, 2020 · US
US-10876541-B2 · Dec 29, 2020 · US
US-10830241-B2 · Nov 10, 2020 · US
US-2020340481-A1 · Oct 29, 2020 · US
US-2020340498-A1 · Oct 29, 2020 · US
US-2020315061-A1 · Oct 1, 2020 · US
US-10791648-B1 · Sep 29, 2020 · US
US-10724534-B2 · Jul 28, 2020 · US
US-10711793-B2 · Jul 14, 2020 · US
US-10683737-B2 · Jun 16, 2020 · US
US-10626871-B2 · Apr 21, 2020 · US
US-2020056462-A1 · Feb 20, 2020 · US
US-10557479-B2 · Feb 11, 2020 · US
US-10500321-B2 · Dec 10, 2019 · US
US-2019368495-A1 · Dec 5, 2019 · US
US-10458414-B2 · Oct 29, 2019 · US
US-2019301467-A1 · Oct 3, 2019 · US
US-2019301482-A1 · Oct 3, 2019 · US
US-2019301483-A1 · Oct 3, 2019 · US
US-2019301480-A1 · Oct 3, 2019 · US
Answers are generated from the same data shown on this page.