Pig including an x-ray fluorescence sensor
US-2022317070-A1 · Oct 6, 2022 · US
driven by fluid pressure
driven by fluid pressure · 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 | F16L55/38 |
| Official title | driven by fluid pressure |
| Display label | driven by fluid pressure |
| Total patents | 102 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 8 |
| 2020 | 14 |
| 2021 | 11 |
| 2022 | 14 |
| 2023 | 7 |
| 2024 | 8 |
| 2025 | 15 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wear indicator for use with pipeline pig components having a pipe wall contacting surface
US-11391409-B2 · Jul 19, 2022 · US
Internal inspection of pipelines
US-11371642-B2 · Jun 28, 2022 · US
Subsea pig launchers
US-11262016-B2 · Mar 1, 2022 · US
High pressure fluid spray nozzle incorporating a flow controlled switching valve
US-11198141-B2 · Dec 14, 2021 · US
Pipeline static charge detection and dissipation systems and methods
US-11175261-B1 · Nov 16, 2021 · US
Switcher nozzle high efficiency flow insert
US-11148151-B2 · Oct 19, 2021 · US
Inspection system and method with variable-diameter traveling robot for inspection of natural gas pipeline
US-11150199-B2 · Oct 19, 2021 · US
Inspection system and method with variable-diameter traveling robot for inspection of natural gas pipeline
US-2021278349-A1 · Sep 9, 2021 · US
Pig for pipelines
US-11098838-B2 · Aug 24, 2021 · US
Automated flowline leak sealing system and method
US-2021247014-A1 · Aug 12, 2021 · US
Apparatus and method for in-situ cathodic protection of piggable water pipelines
US-11072005-B2 · Jul 27, 2021 · US
Directed Jet Impulse Pig Launching System and Method of its Use
US-2021172558-A1 · Jun 10, 2021 · US
Internal Inspection of Pipelines
US-2021088169-A1 · Mar 25, 2021 · US
Wear Indicator For Use With Pipeline Pig Components Having A Pipe Wall Contacting Surface
US-2021018134-A1 · Jan 21, 2021 · US
Subsea Pig Launchers
US-2020347980-A1 · Nov 5, 2020 · US
Pipeline deep crack detection
US-10801837-B2 · Oct 13, 2020 · US
Directed jet impulse pig launching system and method of its use
US-10801658-B2 · Oct 13, 2020 · US
Insulation inspection device and method
US-2020319142-A1 · Oct 8, 2020 · US
In-pipeline maintenance, delivery and management of sensors
US-10780471-B2 · Sep 22, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L55/38?
- CPC F16L55/38 is the Cooperative Patent Classification code for “driven by fluid pressure.”
- How many patents are filed under CPC F16L55/38 (driven by fluid pressure)?
- Our database includes 102 publications tagged with this CPC code.
- Is patent activity under CPC F16L55/38 growing?
- Publication counts under this code: 8 in 2024 vs 15 in 2025 (latest complete years).