Mobile robot
US-12078279-B2 · Sep 3, 2024 · US
expandable
expandable · 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 | F16L55/44 |
| Official title | expandable |
| Display label | expandable |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 2 |
| 2019 | 8 |
| 2020 | 9 |
| 2021 | 13 |
| 2022 | 11 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 8 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-diameter cleaning pig
US-2023400140-A1 · Dec 14, 2023 · US
Systems and methods for maintaining pipes
US-11796116-B2 · Oct 24, 2023 · US
Intelligent maintenance and repair robot for small diameter and small flow oil and gas pipelines and method thereof
US-11788664-B1 · Oct 17, 2023 · US
Pipe repair device
US-2023296200-A1 · Sep 21, 2023 · US
Devices and methods for repairing pipes
US-11698160-B2 · Jul 11, 2023 · US
Advanced caliper for a pipe and method of use
US-2023176015-A1 · Jun 8, 2023 · US
Modular Robotic Inspection System
US-2023128262-A1 · Apr 27, 2023 · US
Caliper pig for detecting geometrical deformation of a pipeline
US-11598475-B2 · Mar 7, 2023 · US
Systems and methods for maintaining pipes
US-11598474-B2 · Mar 7, 2023 · US
Systems and methods for maintaining pipes
US-11585480-B2 · Feb 21, 2023 · US
Systems and methods for maintaining pipes
US-11560977-B2 · Jan 24, 2023 · US
Pipe repair device
US-11530773-B2 · Dec 20, 2022 · US
Intelligent plugging robot and method for long-distance pipeline rerouting, maintaining and repairing construction
US-11466805-B2 · Oct 11, 2022 · US
Intelligent plugging robot and method for long-distance pipeline rerouting, maintaining and repairing construction
US-2022282820-A1 · Sep 8, 2022 · US
Devices and methods for repairing pipes
US-2022228693-A1 · Jul 21, 2022 · US
Multi-diameter foam pig
US-11365842-B2 · Jun 21, 2022 · US
Shaft mechanical lock for pipeline isolation tools
US-11346485-B2 · May 31, 2022 · US
Devices and methods for repairing pipes
US-11320083-B2 · May 3, 2022 · US
Modular robot for pipeline isolation and testing
US-2022120370-A1 · Apr 21, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L55/44?
- CPC F16L55/44 is the Cooperative Patent Classification code for “expandable.”
- How many patents are filed under CPC F16L55/44 (expandable)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC F16L55/44 growing?
- Publication counts under this code: 10 in 2024 vs 8 in 2025 (latest complete years).