Pump seal
US-11761536-B2 · Sep 19, 2023 · US
Cylinder liners
Cylinder liners · 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 | F04B53/166 |
| Official title | {Cylinder liners} |
| Display label | Cylinder liners |
| Total patents | 86 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 10 |
| 2022 | 13 |
| 2023 | 12 |
| 2024 | 9 |
| 2025 | 10 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Packing sleeve for pump fluid end
US-11754068-B1 · Sep 12, 2023 · US
Plunger bore sleeve for a reciprocating pump
US-11725651-B2 · Aug 15, 2023 · US
Fuel Pump
US-2023193865-A1 · Jun 22, 2023 · US
Sealing high pressure flow devices
US-11649901-B2 · May 16, 2023 · US
Long sleeve cartridge for a fluid end block
US-2023130824-A1 · Apr 27, 2023 · US
Fluid cylinder sleeve assembly
US-2023041201-A1 · Feb 9, 2023 · US
Sealing high pressure flow devices
US-11536378-B2 · Dec 27, 2022 · US
Sealing high pressure flow devices
US-11486502-B2 · Nov 1, 2022 · US
System for dispensing abrasive material
US-2022299017-A1 · Sep 22, 2022 · US
Reciprocating Pump Fluid Cylinder Sleeve Assembly
US-2022282719-A1 · Sep 8, 2022 · US
Sealing high pressure flow devices
US-2022260161-A1 · Aug 18, 2022 · US
Axial piston-type hydraulic rotary machine
US-11396872-B2 · Jul 26, 2022 · US
Compressor
US-11359617-B2 · Jun 14, 2022 · US
Wear and corrosion resistant steel compositions and high pressure pumps and pump components comprised thereof
US-2022098962-A1 · Mar 31, 2022 · US
Linear compressor
US-11261856-B2 · Mar 1, 2022 · US
Linear compressor
US-11231025-B2 · Jan 25, 2022 · US
Pump seal
US-2022018435-A1 · Jan 20, 2022 · US
Biocompatible component with structural reinforcement
US-11221315-B2 · Jan 11, 2022 · US
Hydraulic assembly, particularly for supplying a brake circuit of a vehicle brake system with fluid at brake pressure
US-11215287-B2 · Jan 4, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B53/166?
- CPC F04B53/166 is the Cooperative Patent Classification code for “Cylinder liners.”
- How many patents are filed under CPC F04B53/166 (Cylinder liners)?
- Our database includes 86 publications tagged with this CPC code.
- Is patent activity under CPC F04B53/166 growing?
- Publication counts under this code: 9 in 2024 vs 10 in 2025 (latest complete years).