Remote controlled light adjustment device and associated method
US-12209737-B2 · Jan 28, 2025 · US
Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning · 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 | B61L29/24 |
| Official title | Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning |
| Display label | Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Information processing method
US-2025010863-A1 · Jan 9, 2025 · US
Smart cam for digitalization of a gate mechanism
US-11938985-B2 · Mar 26, 2024 · US
Remote controlled light adjustment device and associated method
US-2024003522-A1 · Jan 4, 2024 · US
Intersection management system
US-2023339526-A1 · Oct 26, 2023 · US
Method and device for monitoring a hazard zone of a level crossing
US-11738786-B2 · Aug 29, 2023 · US
Vehicle control system and method
US-11691657-B2 · Jul 4, 2023 · US
System and method for providing railroad grade crossing status information to autonomous vehicles
US-11420663-B2 · Aug 23, 2022 · US
System and method for providing railroad grade crossing status information to autonomous vehicles
US-2021284213-A1 · Sep 16, 2021 · US
Management system and control system
US-11079246-B2 · Aug 3, 2021 · US
Vehicle advisory system
US-10974748-B1 · Apr 13, 2021 · US
Method and device for monitoring a hazard zone of a level crossing
US-2021061327-A1 · Mar 4, 2021 · US
Smart cam for digitalization of a gate mechanism
US-2020391776-A1 · Dec 17, 2020 · US
Method for Wirelessly Indicating Flaggers State and Safety on a Wireless Crossing
US-2020346674-A1 · Nov 5, 2020 · US
Methods and apparatus to facilitate mitigation of vehicle trapping on railroad crossings
US-10768001-B2 · Sep 8, 2020 · US
Railroad crossing indication device, railroad crossing indication system, and method for displaying information at railroad crossings
US-10507854-B2 · Dec 17, 2019 · US
Management system and control system
US-2019226857-A1 · Jul 25, 2019 · US
Methods and apparatus to facilitate mitigation of vehicle trapping on railroad crossings
US-2019212156-A1 · Jul 11, 2019 · US
System, apparatus and method for mounting a device
US-10288218-B2 · May 14, 2019 · US
Railroad crossing indication device, railroad crossing indication system, and method for displaying information at railroad crossings
US-2018222507-A1 · Aug 9, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61L29/24?
- CPC B61L29/24 is the Cooperative Patent Classification code for “Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning.”
- How many patents are filed under CPC B61L29/24 (Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC B61L29/24 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).