Hydraulic system, excavator, and control method of excavator
US-12442160-B2 · Oct 14, 2025 · US
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with rotary servomotors
with rotary servomotors · 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 | F15B9/14 |
| Official title | with rotary servomotors |
| Display label | with rotary servomotors |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 1 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydraulic system, excavator, and control method of excavator
US-2025290287-A1 · Sep 18, 2025 · US
Rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight
US-12384559-B2 · Aug 12, 2025 · US
Inertial load dampening hydraulic system with persistent oil conditioning
US-12338604-B1 · Jun 24, 2025 · US
Servo-control system
US-12278134-B2 · Apr 15, 2025 · US
Servo-control system
US-2024047263-A1 · Feb 8, 2024 · US
Rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight
US-2023382558-A1 · Nov 30, 2023 · US
Servo-control system
US-11830760-B2 · Nov 28, 2023 · US
Methods of use of a servo control system
US-11798833-B2 · Oct 24, 2023 · US
Rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight
US-11608191-B2 · Mar 21, 2023 · US
Servo-control system
US-2023028135-A1 · Jan 26, 2023 · US
Hydraulic control unit for an automatic transmission of a motor vehicle
US-11421714-B2 · Aug 23, 2022 · US
Actuator control arrangement
US-11204045-B2 · Dec 21, 2021 · US
Servo control of a lift apparatus and methods of use thereof
US-2021265194-A1 · Aug 26, 2021 · US
Actuator control arrangement
US-2021018020-A1 · Jan 21, 2021 · US
Rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight
US-2020331633-A1 · Oct 22, 2020 · US
Hydraulic Control Unit for an Automatic Transmission of a Motor Vehicle
US-2020309159-A1 · Oct 1, 2020 · US
Rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight
US-10696420-B2 · Jun 30, 2020 · US
Hydraulic rotary actuator with built-in mechanical position feedback
US-10316867-B2 · Jun 11, 2019 · US
Rotorcraft-Assisted System and Method for Launching and Retrieving a Fixed-Wing Aircraft into and from Free Flight
US-2018327113-A1 · Nov 15, 2018 · US