Integral energy recovery ventilator with bypass by rotation for rooftops
US-2022412601-A1 · Dec 29, 2022 · US
shaped in sector form, e.g. with baskets · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F28D19/044 |
| Official title | {shaped in sector form, e.g. with baskets} |
| Display label | shaped in sector form, e.g. with baskets |
| Total patents | 12 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2022412601-A1 · Dec 29, 2022 · US
US-11041679-B2 · Jun 22, 2021 · US
US-2020232719-A1 · Jul 23, 2020 · US
US-10443961-B2 · Oct 15, 2019 · US
US-2018066903-A1 · Mar 8, 2018 · US
US-2017198981-A1 · Jul 13, 2017 · US
US-2017131049-A1 · May 11, 2017 · US
US-9587894-B2 · Mar 7, 2017 · US
US-9581330-B2 · Feb 28, 2017 · US
US-9448015-B2 · Sep 20, 2016 · US
US-2015198392-A1 · Jul 16, 2015 · US
US-2015144293-A1 · May 28, 2015 · US