Monitoring transportation systems
US-2018299301-A1 · Oct 18, 2018 · US
Broken rails
Broken rails · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B61L23/044 |
| Official title | {Broken rails} |
| Display label | Broken rails |
| Total patents | 223 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 17 |
| 2017 | 22 |
| 2018 | 23 |
| 2019 | 26 |
| 2020 | 19 |
| 2021 | 21 |
| 2022 | 16 |
| 2023 | 18 |
| 2024 | 17 |
| 2025 | 28 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Monitoring device for monitoring a railway track, associated method and monitoring system for monitoring a railway track
US-2018265106-A1 · Sep 20, 2018 · US
Digital context-aware data collection
US-2018251141-A1 · Sep 6, 2018 · US
Route Examination System And Method
US-2018203459-A1 · Jul 19, 2018 · US
Monitor vehicle for a rail system and method thereof
US-2018148076-A1 · May 31, 2018 · US
Wayside communication system using power grid lines
US-2018093684-A1 · Apr 5, 2018 · US
Route examination system and method
US-9921584-B2 · Mar 20, 2018 · US
Route examining system
US-2018015937-A1 · Jan 18, 2018 · US
Sensor synchronization apparatus and method
US-9849895-B2 · Dec 26, 2017 · US
Route feature identification system and method
US-9845023-B2 · Dec 19, 2017 · US
Route examining system and method
US-9834237-B2 · Dec 5, 2017 · US
Route examining system
US-9802631-B2 · Oct 31, 2017 · US
Vibration notifications received from vibration sensors
US-2017267266-A1 · Sep 21, 2017 · US
Railway track geometry defect modeling for predicting deterioration, derailment risk, and optimal repair
US-9764746-B2 · Sep 19, 2017 · US
Nondestructive evaluation of railroad rails, wheels, and axles
US-9752993-B1 · Sep 5, 2017 · US
Railway track geometry defect modeling for predicting deterioration, derailment risk, and optimal repair
US-9744978-B2 · Aug 29, 2017 · US
Method for detection of a flaw or flaws in a railway track, and a rail vehicle to be used in such a method
US-9731734-B2 · Aug 15, 2017 · US
System and method for inspecting a route during movement of a vehicle system over the route
US-2017217459-A1 · Aug 3, 2017 · US
Broken rail detection system for railway systems
US-9701326-B2 · Jul 11, 2017 · US
Route examining system and method
US-9682716-B2 · Jun 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61L23/044?
- CPC B61L23/044 is the Cooperative Patent Classification code for “Broken rails.”
- How many patents are filed under CPC B61L23/044 (Broken rails)?
- Our database includes 223 publications tagged with this CPC code.
- Is patent activity under CPC B61L23/044 growing?
- Publication counts under this code: 17 in 2024 vs 28 in 2025 (latest complete years).