Construction machine
US-11193254-B2 · Dec 7, 2021 · US
Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link · 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 | F15B11/006 |
| Official title | {Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link} |
| Display label | Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link |
| Total patents | 85 |
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 | 5 |
| 2016 | 10 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 11 |
| 2020 | 10 |
| 2021 | 13 |
| 2022 | 5 |
| 2023 | 6 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Valve device, system and method
US-2021356975-A1 · Nov 18, 2021 · US
Application-based control of a valve disk
US-11143213-B2 · Oct 12, 2021 · US
Dual valve fluid actuator assembly
US-11092170-B2 · Aug 17, 2021 · US
Metering hydraulic control system for mining machine
US-11028862-B2 · Jun 8, 2021 · US
Method to automatically detect parameter for pressure dynamics control
US-11002297-B2 · May 11, 2021 · US
Metering hydraulic control system for mining machine
US-2021131066-A1 · May 6, 2021 · US
Bootstrap hydraulic reservoir
US-10920795-B2 · Feb 16, 2021 · US
Two-stage valve arrangement for hydraulic control of a piston- cylinder arrangement of a high- or medium-voltage power switch
US-10830256-B2 · Nov 10, 2020 · US
Anti-reverse valve
US-2020340210-A1 · Oct 29, 2020 · US
Method for the supply of compressed air to a compressed-air consumer, valve device and data carrier with a computer program
US-10808738-B2 · Oct 20, 2020 · US
Drive control method of hydraulic actuator of construction machine
US-10787791-B2 · Sep 29, 2020 · US
Method to automatically detect parameter for pressure dynamics control
US-2020291970-A1 · Sep 17, 2020 · US
Method for operating a valve device, valve device and data storage medium with a computer program
US-10774857-B2 · Sep 15, 2020 · US
Actuator arrangement
US-10731676-B2 · Aug 4, 2020 · US
Actuator controller and method for regulating the movement of an actuator
US-10697476-B2 · Jun 30, 2020 · US
Bootstrap hydraulic reservoir
US-2020166055-A1 · May 28, 2020 · US
Method to automatically detect parameter for pressure dynamics control
US-10605277-B2 · Mar 31, 2020 · US
Dual valve fluid actuator assembly
US-2019376531-A1 · Dec 12, 2019 · US
Method to automatically detect the area ratio of an actuator
US-10487860-B2 · Nov 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B11/006?
- CPC F15B11/006 is the Cooperative Patent Classification code for “Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link.”
- How many patents are filed under CPC F15B11/006 (Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link)?
- Our database includes 85 publications tagged with this CPC code.
- Is patent activity under CPC F15B11/006 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).