Closing apparatus and airflow device
US-12528333-B2 · Jan 20, 2026 · US
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constrictable by twisting
constrictable by twisting · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16K7/08 |
| Official title | constrictable by twisting |
| Display label | constrictable by twisting |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2020 | 2 |
| 2024 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Closing apparatus and airflow device
US-2024001733-A1 · Jan 4, 2024 · US
Drip emitter with check valve
US-10626998-B2 · Apr 21, 2020 · US
Constrictor valve with webbing, cementitious slurry mixing and dispensing assembly, and method for making cementitious product
US-10537863-B2 · Jan 21, 2020 · US
Drip Emitter With Check Valve
US-2018328498-A1 · Nov 15, 2018 · US
Flow interrupter for respiratory treatment apparatus
US-9833591-B1 · Dec 5, 2017 · US
Constrictor valve with webbing, cementitious slurry mixing and dispensing assembly, and method for making cementitious product
US-2017189872-A1 · Jul 6, 2017 · US
Helically actuated positive-displacement pump and method
US-2015017038-A1 · Jan 15, 2015 · US