Landfill pump having metered cycling
US-12454965-B2 · Oct 28, 2025 · US
Flow resistance valves, e.g. without moving parts
Flow resistance valves, e.g. without moving parts · 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 | F04B53/1077 |
| Official title | {Flow resistance valves, e.g. without moving parts} |
| Display label | Flow resistance valves, e.g. without moving parts |
| Total patents | 53 |
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 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 10 |
| 2024 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Virtual valve in a mems-based cooling system
US-2025075825-A1 · Mar 6, 2025 · US
Virtual valve in a MEMS-based cooling system
US-12181077-B2 · Dec 31, 2024 · US
Piezoelectric mems-based active cooling for heat dissipation in compute devices
US-2024234247-A9 · Jul 11, 2024 · US
Pump unit for chromatograph
US-2024159717-A1 · May 16, 2024 · US
Piezoelectric mems-based active cooling for heat dissipation in compute devices
US-2024136252-A1 · Apr 25, 2024 · US
Compressor, in particular refrigerant compressor, refrigeration machine, and method for producing a compressor
US-2024110734-A1 · Apr 4, 2024 · US
Cryopumps and inlet flow restrictors for cryopumps
US-2023392838-A1 · Dec 7, 2023 · US
Mobile phone and other compute device cooling architecture
US-11830789-B2 · Nov 28, 2023 · US
Method and system for driving piezoelectric MEMS-based active cooling devices
US-11784109-B2 · Oct 10, 2023 · US
Piezoelectric MEMS-based active cooling for heat dissipation in compute devices
US-11735496-B2 · Aug 22, 2023 · US
Flow control valve
US-11719236-B2 · Aug 8, 2023 · US
Combined architecture for cooling devices
US-11710678-B2 · Jul 25, 2023 · US
Controlling the flow of fluid to high pressure pumps
US-11702916-B2 · Jul 18, 2023 · US
Two-dimensional addessable array of piezoelectric MEMS-based active cooling devices
US-11705382-B2 · Jul 18, 2023 · US
Fluid pump
US-2023092080-A1 · Mar 23, 2023 · US
Pump
US-11578715-B2 · Feb 14, 2023 · US
Flow Control Valve
US-2022403838-A1 · Dec 22, 2022 · US
Mobile phone and other compute device cooling architecture
US-11532536-B2 · Dec 20, 2022 · US
Chamber architecture for cooling devices
US-11456234-B2 · Sep 27, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B53/1077?
- CPC F04B53/1077 is the Cooperative Patent Classification code for “Flow resistance valves, e.g. without moving parts.”
- How many patents are filed under CPC F04B53/1077 (Flow resistance valves, e.g. without moving parts)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC F04B53/1077 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).