Pump and fluid displacer for a pump
US-2026002526-A1 · Jan 1, 2026 · US
Linear speed of the piston
Linear speed of the piston · 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 | F04B2201/0202 |
| Official title | Linear speed of the piston |
| Display label | Linear speed of the piston |
| Total patents | 62 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 6 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 12 |
| 2021 | 3 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 8 |
| 2025 | 4 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pumping device, plant and method for supplying liquid hydrogen
US-12473899-B2 · Nov 18, 2025 · US
Liquid feeding pump and liquid feeding method
US-12442363-B2 · Oct 14, 2025 · US
Fluid pump with whistle
US-12361800-B2 · Jul 15, 2025 · US
Liquid delivery pump
US-2025035096-A1 · Jan 30, 2025 · US
Control method and control device applied to electric fracturing apparatus
US-12163510-B2 · Dec 10, 2024 · US
Liquid feeding apparatus and liquid feeding method
US-12153026-B2 · Nov 26, 2024 · US
Fluid pump with whistle
US-2024203218-A1 · Jun 20, 2024 · US
Irrigation pump with ablation and non-ablation operational modes
US-12011211-B2 · Jun 18, 2024 · US
Method for Operating a Construction-Material and/or Viscous-Material Pump for Conveying Construction Material and/or Viscous Material, and a Construction-Material and/or Viscous-Material Pump
US-2024159227-A1 · May 16, 2024 · US
Method for monitoring the state of a device and device
US-11959469-B2 · Apr 16, 2024 · US
Fluid pump with whistle
US-11954997-B2 · Apr 9, 2024 · US
Method and system for predicting failures of sucker rod pumps using scaled load ratios
US-11898552-B2 · Feb 13, 2024 · US
Liquid Feeding Pump and Liquid Feeding Method
US-2023332586-A1 · Oct 19, 2023 · US
Method for Operating a Construction-Material And/or Viscous-Material Pump for Conveying Construction Material And/or Viscous Material, and Construction-Material And/or Viscous-Material Pump for Conveying Construction Material And/or Viscous Material
US-2023265843-A1 · Aug 24, 2023 · US
Fluid Pump with Whistle
US-2023086466-A1 · Mar 23, 2023 · US
Liquid feeding apparatus and liquid feeding method
US-2023091683-A1 · Mar 23, 2023 · US
Method and system for predicting failures of sucker rod pumps using scaled load ratios
US-2023057264-A1 · Feb 23, 2023 · US
Fluid pump with whistle
US-11545011-B2 · Jan 3, 2023 · US
Methods of Increasing Efficiency of Plunger Lift Operations
US-2022372852-A1 · Nov 24, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B2201/0202?
- CPC F04B2201/0202 is the Cooperative Patent Classification code for “Linear speed of the piston.”
- How many patents are filed under CPC F04B2201/0202 (Linear speed of the piston)?
- Our database includes 62 publications tagged with this CPC code.
- Is patent activity under CPC F04B2201/0202 growing?
- Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).