Discharge pressure scale and lifting-lowering device having a discharge pressure scale of this type
US-10871177-B2 · Dec 22, 2020 · US
Locking-valves or other detent {i.e. load-holding} devices
Locking-valves or other detent {i.e. load-holding} devices · 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 | F15B13/01 |
| Official title | Locking-valves or other detent {i.e. load-holding} devices |
| Display label | Locking-valves or other detent {i.e. load-holding} devices |
| Total patents | 111 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 10 |
| 2017 | 6 |
| 2018 | 12 |
| 2019 | 14 |
| 2020 | 19 |
| 2021 | 10 |
| 2022 | 10 |
| 2023 | 5 |
| 2024 | 7 |
| 2025 | 5 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydraulic drive
US-10800124-B2 · Oct 13, 2020 · US
Proportional fluid flow control valve configured to generate a pressure-boosted pilot fluid signal
US-10648488-B1 · May 12, 2020 · US
Pulse controlled solenoid valve with dual ball detent
US-2020141426-A1 · May 7, 2020 · US
Hydraulic drive device for cargo vehicle
US-2020063761-A1 · Feb 27, 2020 · US
Composite valve for direct attachment to port of hydraulic apparatus
US-2020056632-A1 · Feb 20, 2020 · US
Electrohydraulic Counterbalance and Pressure Relief Valve
US-2020056631-A1 · Feb 20, 2020 · US
Arrangement of a switching valve module in a connecting rod of a reciprocating internal combustion engine
US-10563575-B2 · Feb 18, 2020 · US
Hydraulic pump with secondary safety check valve
US-2020011356-A1 · Jan 9, 2020 · US
Pressure retaining valve
US-10519988-B2 · Dec 31, 2019 · US
Hydraulic lock and method for a hydraulic system
US-2019376532-A1 · Dec 12, 2019 · US
Electrohydraulic counterbalance and pressure relief valve
US-10495117-B1 · Dec 3, 2019 · US
Fluid pressure valve
US-2019360603-A1 · Nov 28, 2019 · US
System and method for hydraulic actuator lock valve
US-10487474-B2 · Nov 26, 2019 · US
Assembly for blocking and enabling a shifting position of a shifting element
US-10480641-B2 · Nov 19, 2019 · US
Construction machine
US-10465719-B2 · Nov 5, 2019 · US
Arrangement of a switching valve module in a connecting rod of a reciprocating internal combustion engine
US-2019301364-A1 · Oct 3, 2019 · US
System for actuating a control surface of an aircraft
US-10384764-B2 · Aug 20, 2019 · US
Discharge pressure scale and lifting-lowering device having a discharge pressure scale of this type
US-2019249693-A1 · Aug 15, 2019 · US
Hydraulic no-back device
US-2019203743-A1 · Jul 4, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B13/01?
- CPC F15B13/01 is the Cooperative Patent Classification code for “Locking-valves or other detent {i.e. load-holding} devices.”
- How many patents are filed under CPC F15B13/01 (Locking-valves or other detent {i.e. load-holding} devices)?
- Our database includes 111 publications tagged with this CPC code.
- Is patent activity under CPC F15B13/01 growing?
- Publication counts under this code: 7 in 2024 vs 5 in 2025 (latest complete years).