Systems and methods for determining valve flutter
US-12480598-B2 · Nov 25, 2025 · US
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weight-loaded
weight-loaded · 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 | F16K15/034 |
| Official title | {weight-loaded} |
| Display label | weight-loaded |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 1 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Two-pin clapper check valve
US-12410869-B2 · Sep 9, 2025 · US
Systems and methods for determining valve flutter
US-2025122951-A1 · Apr 17, 2025 · US
Magnetic pressure retaining control device
US-12228217-B2 · Feb 18, 2025 · US
Two-pin clapper check valve
US-2024117889-A1 · Apr 11, 2024 · US
Variable-flow-path air valve for water hammer prevention and a design method
US-11846379-B2 · Dec 19, 2023 · US
Magnetic pressure retaining control device
US-2023400111-A1 · Dec 14, 2023 · US
Ball design clapper assembly
US-11828371-B2 · Nov 28, 2023 · US
Ball Design Clapper Assembly
US-2023258274-A1 · Aug 17, 2023 · US
Subsurface safety valve with uniform loading
US-11661820-B2 · May 30, 2023 · US
Variable-flow-path air valve for water hammer prevention and a design method
US-2023160515-A1 · May 25, 2023 · US
Clapper check valve with a valve seat seal member
US-2023116368-A1 · Apr 13, 2023 · US
Mixed regime passive valve
US-11519508-B1 · Dec 6, 2022 · US
Clapper check valve with a valve seat seal member
US-11512781-B2 · Nov 29, 2022 · US
Subsurface Safety Valve With Uniform Loading
US-2022205338-A1 · Jun 30, 2022 · US
High Flow Non Pressurised Filling Control Valve
US-2022169110-A1 · Jun 2, 2022 · US
Clapper Check Valve with a Valve Seat Seal Member
US-2022018446-A1 · Jan 20, 2022 · US
Pressure relief assembly
US-10358014-B2 · Jul 23, 2019 · US
Check Valve
US-2018238459-A1 · Aug 23, 2018 · US
Pressure relief assembly
US-2015283882-A1 · Oct 8, 2015 · US