Method for the preparation of polymer polyols
US-12258436-B2 · Mar 25, 2025 · US
the impeller being of hydrofoil type
the impeller being of hydrofoil type · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01F27/1134 |
| Official title | {the impeller being of hydrofoil type} |
| Display label | the impeller being of hydrofoil type |
| Total patents | 25 |
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 | 3 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for the preparation of polymer polyols
US-2024417507-A1 · Dec 19, 2024 · US
Process for preparation of asphalt mix composition
US-2024360314-A1 · Oct 31, 2024 · US
Oligomeriser with improved mixing performance
US-11859048-B2 · Jan 2, 2024 · US
Single Use Bioreactor
US-2023045226-A1 · Feb 9, 2023 · US
Single use bioreactor
US-11371002-B2 · Jun 28, 2022 · US
Propeller for a digestion tank mixer
US-2021394135-A1 · Dec 23, 2021 · US
Single Use Bioreactor
US-2021002597-A1 · Jan 7, 2021 · US
Single use bioreactor
US-10801003-B2 · Oct 13, 2020 · US
Hydrofoil impeller
US-10654011-B2 · May 19, 2020 · US
Oligomeriser with improved mixing performance
US-2020148819-A1 · May 14, 2020 · US
Systems for inactivating fluid cultures through heating
US-10308907-B2 · Jun 4, 2019 · US
Mixing and delivery method arrangement and pump for supplying small particles suspended in a liquid to form slurry for delivery
US-10245567-B2 · Apr 2, 2019 · US
Hydrofoil impeller
US-2018280901-A1 · Oct 4, 2018 · US
Hydrofoil impeller
US-9879697-B2 · Jan 30, 2018 · US
Bioreactor With Higher Agitation Rates
US-2018010082-A1 · Jan 11, 2018 · US
Mixing and delivery method arrangement and pump for supplying small particles suspended in a liquid to form flurry for delivery
US-2017361288-A1 · Dec 21, 2017 · US
Single Use Bioreactor
US-2017349874-A1 · Dec 7, 2017 · US
Hydrofoil impeller
US-2017306983-A1 · Oct 26, 2017 · US
Systems for inactivating fluid cultures through heating
US-2016194595-A1 · Jul 7, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01F27/1134?
- CPC B01F27/1134 is the Cooperative Patent Classification code for “the impeller being of hydrofoil type.”
- How many patents are filed under CPC B01F27/1134 (the impeller being of hydrofoil type)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC B01F27/1134 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).