Hydraulic pump malfunction diagnosing device
US-10132307-B2 · Nov 20, 2018 · US
Responsive to speed
Responsive to 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 | F04B49/103 |
| Official title | {Responsive to speed} |
| Display label | Responsive to speed |
| Total patents | 172 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 9 |
| 2017 | 14 |
| 2018 | 22 |
| 2019 | 20 |
| 2020 | 15 |
| 2021 | 15 |
| 2022 | 15 |
| 2023 | 17 |
| 2024 | 13 |
| 2025 | 12 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pump control system with isolated AC voltage detector
US-10119535-B2 · Nov 6, 2018 · US
Pump Protection Method and System
US-2018313349-A1 · Nov 1, 2018 · US
Electronic control for a rotary fluid device
US-10100827-B2 · Oct 16, 2018 · US
Hydraulic fracturing system and method for optimizing operation thereof
US-2018291712-A1 · Oct 11, 2018 · US
Method for regulating the rotational speed of a compressor as a function of the available gas flow of a source and regulation thereby applied
US-2018283379-A1 · Oct 4, 2018 · US
Hybrid Work Machine
US-2018258613-A1 · Sep 13, 2018 · US
Dynamic speed control for pump motor
US-10072662-B2 · Sep 11, 2018 · US
Work machine
US-2018238028-A1 · Aug 23, 2018 · US
Pump Monitoring and Notification System
US-2018223831-A1 · Aug 9, 2018 · US
Load Shedding Control System for Pumps
US-2018216607-A1 · Aug 2, 2018 · US
Pump Failure Differentiation System
US-2018209415-A1 · Jul 26, 2018 · US
Power conversion device
US-10003277-B2 · Jun 19, 2018 · US
Best-fit affinity sensorless conversion means or technique for pump differential pressure and flow monitoring
US-9938970-B2 · Apr 10, 2018 · US
System for controlling a resonant linear compressor piston, method for controlling a resonant linear compressor piston, and resonant linear compressor
US-9915260-B2 · Mar 13, 2018 · US
Substrate treating apparatus, drive assembly, and drive member controlling method
US-9915261-B2 · Mar 13, 2018 · US
Cavitation limiting strategies for pumping system
US-2018040226-A1 · Feb 8, 2018 · US
Hybrid hydraulic systems for industrial processes
US-9874233-B2 · Jan 23, 2018 · US
Pump arrangement and corresponding operating method
US-2018003170-A1 · Jan 4, 2018 · US
Methods and systems for controlling a chiller system having a centrifugal compressor with a variable speed drive
US-2017356684-A1 · Dec 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B49/103?
- CPC F04B49/103 is the Cooperative Patent Classification code for “Responsive to speed.”
- How many patents are filed under CPC F04B49/103 (Responsive to speed)?
- Our database includes 172 publications tagged with this CPC code.
- Is patent activity under CPC F04B49/103 growing?
- Publication counts under this code: 13 in 2024 vs 12 in 2025 (latest complete years).