Engine overload prevention using a speed differential operated relief valve
US-9850885-B2 · Dec 26, 2017 · US
representing a state of the prime mover, e.g. torque or rotational speed
representing a state of the prime mover, e.g. torque or rotational speed · 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 | F15B2211/633 |
| Official title | representing a state of the prime mover, e.g. torque or rotational speed |
| Display label | representing a state of the prime mover, e.g. torque or rotational speed |
| Total patents | 274 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 20 |
| 2017 | 29 |
| 2018 | 20 |
| 2019 | 34 |
| 2020 | 19 |
| 2021 | 24 |
| 2022 | 28 |
| 2023 | 23 |
| 2024 | 26 |
| 2025 | 24 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for compensating for flow rate of hydraulic pump of construction machine
US-2017321394-A1 · Nov 9, 2017 · US
Control system of hybrid construction machine
US-2017314233-A1 · Nov 2, 2017 · US
Hydraulic pressure supply system
US-2017314578-A1 · Nov 2, 2017 · US
Hydraulic system for working machine
US-9803333-B2 · Oct 31, 2017 · US
Hydraulic drive system
US-9790966-B2 · Oct 17, 2017 · US
Industrial system with synthetically commutated variable displacement fluid working machine
US-2017284388-A1 · Oct 5, 2017 · US
Hydraulic control apparatus and hydraulic control method
US-2017284424-A1 · Oct 5, 2017 · US
Control system for hydraulic system and method for recovering energy and leveling hydraulic system loads
US-9765501-B2 · Sep 19, 2017 · US
Cargo vehicle
US-2017260033-A1 · Sep 14, 2017 · US
Hydraulic drive system
US-9709076-B2 · Jul 18, 2017 · US
Hydraulic apparatus
US-2017198730-A1 · Jul 13, 2017 · US
Control device and control method for construction machine
US-2017198458-A1 · Jul 13, 2017 · US
Hydraulic drive system
US-9683585-B2 · Jun 20, 2017 · US
Method for controlling pressure in a hydraulic actuator
US-9670943-B2 · Jun 6, 2017 · US
Engine speed controller of work machine
US-9657654-B2 · May 23, 2017 · US
System and method of hydraulic energy recovery for machine start-stop and machine ride control
US-2017130739-A1 · May 11, 2017 · US
System for improving the energy efficiency in hydraulic systems, piston accumulator and pressure accumulator provided for such a system
US-9631647-B2 · Apr 25, 2017 · US
Work machine
US-2017107696-A1 · Apr 20, 2017 · US
Engine-assist device and industrial machine
US-9593467-B2 · Mar 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B2211/633?
- CPC F15B2211/633 is the Cooperative Patent Classification code for “representing a state of the prime mover, e.g. torque or rotational speed.”
- How many patents are filed under CPC F15B2211/633 (representing a state of the prime mover, e.g. torque or rotational speed)?
- Our database includes 274 publications tagged with this CPC code.
- Is patent activity under CPC F15B2211/633 growing?
- Publication counts under this code: 26 in 2024 vs 24 in 2025 (latest complete years).