Refrigerator and method of controlling the same
US-2026016222-A1 · Jan 15, 2026 · US
Floats for actuation of valves or other apparatus {(float actuated valves F16K31/18)}
Floats for actuation of valves or other apparatus {(float actuated valves F16K31/18)} · 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 | F16K33/00 |
| Official title | Floats for actuation of valves or other apparatus {(float actuated valves F16K31/18)} |
| Display label | Floats for actuation of valves or other apparatus {(float actuated valves F16K31/18)} |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 9 |
| 2019 | 2 |
| 2020 | 11 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Refrigerator and method of controlling the same
US-12435920-B2 · Oct 7, 2025 · US
Valve device
US-12179575-B1 · Dec 31, 2024 · US
Valve device
US-2024424889-A1 · Dec 26, 2024 · US
Valve device
US-11953110-B2 · Apr 9, 2024 · US
Refrigerator and method of controlling the same
US-2024044573-A1 · Feb 8, 2024 · US
Additive manufactured floats for use in a downhole environment
US-11892096-B2 · Feb 6, 2024 · US
Refrigerator and method of controlling the same
US-11821680-B2 · Nov 21, 2023 · US
Valve device
US-2023332708-A1 · Oct 19, 2023 · US
Fill limit venting valve with high shut-off height
US-11560049-B2 · Jan 24, 2023 · US
Density-based fluid flow control devices
US-11543049-B2 · Jan 3, 2023 · US
Filling level sensing device
US-11535228-B2 · Dec 27, 2022 · US
Additive manufactured floats for use in a downhole environment
US-2022403714-A1 · Dec 22, 2022 · US
Density-based fluid flow control device
US-11493145-B2 · Nov 8, 2022 · US
Discharge valve system and method
US-11391391-B2 · Jul 19, 2022 · US
Refrigerator and method of controlling the same
US-2022090852-A1 · Mar 24, 2022 · US
Refrigerator and method of controlling the same
US-11215394-B2 · Jan 4, 2022 · US
Fill limit venting valve with high shut-off height
US-2021331582-A1 · Oct 28, 2021 · US
Automatic draining device for condensed water or leaking water in aeration pipeline
US-11092275-B1 · Aug 17, 2021 · US
Automatic draining device for condensed water or leaking water in aeration pipeline
US-2021231253-A1 · Jul 29, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K33/00?
- CPC F16K33/00 is the Cooperative Patent Classification code for “Floats for actuation of valves or other apparatus {(float actuated valves F16K31/18)}.”
- How many patents are filed under CPC F16K33/00 (Floats for actuation of valves or other apparatus {(float actuated valves F16K31/18)})?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC F16K33/00 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).