Compressor inlet adjustment mechanism
US-11525451-B2 · Dec 13, 2022 · US
with a closure member in the form of an iris-diaphragm
with a closure member in the form of an iris-diaphragm · 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 | F16K3/03 |
| Official title | with a closure member in the form of an iris-diaphragm |
| Display label | with a closure member in the form of an iris-diaphragm |
| Total patents | 79 |
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 | 5 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 12 |
| 2020 | 11 |
| 2021 | 9 |
| 2022 | 11 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Modulating gas orifice
US-2022299238-A1 · Sep 22, 2022 · US
Radial compressor having an iris mechanism for a supercharging device of an internal combustion engine, supercharging device and blade for the iris mechanism
US-11434927-B2 · Sep 6, 2022 · US
Serial airlock architecture
US-2022089195-A1 · Mar 24, 2022 · US
Valve for aircraft environmental control system conduit
US-11260978-B2 · Mar 1, 2022 · US
Serial airlock architecture
US-11230298-B2 · Jan 25, 2022 · US
Compressor with variable compressor inlet
US-11105218-B2 · Aug 31, 2021 · US
Vent arrangement for a respiratory device
US-2021252249-A1 · Aug 19, 2021 · US
Seal assemblies for surgical access assemblies
US-2021228233-A1 · Jul 29, 2021 · US
Flow control valve including a plurality of tubes having a geometrically variable cross-section
US-10989234-B2 · Apr 27, 2021 · US
Compressor inlet adjustment mechanism
US-2021115942-A1 · Apr 22, 2021 · US
Bidirectional downhole isolation valve
US-10954749-B2 · Mar 23, 2021 · US
Radial compressor having iris diaphragm mechanism
US-2021048038-A1 · Feb 18, 2021 · US
Compressor for a charging device of an internal combustion engine and charging device for an internal combustion engine
US-10900497-B2 · Jan 26, 2021 · US
Vent arrangement for a respiratory device
US-10881830-B2 · Jan 5, 2021 · US
Inlet valve for a compressor
US-10876638-B2 · Dec 29, 2020 · US
Method for the circulation of fuel in a filling line of a tank of an aircraft, and valve connected to a line for implementing said method
US-2020356116-A1 · Nov 12, 2020 · US
Valve for aircraft environmental control system conduit
US-2020346761-A1 · Nov 5, 2020 · US
Radial compressor for a charging device of an internal combustion engine, charging device and lamellas for an iris diaphragm mechanism, and method for producing such lamella
US-2020217241-A1 · Jul 9, 2020 · US
Compressor for a charging device of an internal combustion engine and charging device for an internal combustion engine
US-2020208650-A1 · Jul 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K3/03?
- CPC F16K3/03 is the Cooperative Patent Classification code for “with a closure member in the form of an iris-diaphragm.”
- How many patents are filed under CPC F16K3/03 (with a closure member in the form of an iris-diaphragm)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC F16K3/03 growing?
- Publication counts under this code: 2 in 2024 vs 7 in 2025 (latest complete years).