Rail warning system and method
US-2024409139-A1 · Dec 12, 2024 · US
for warning men working on the route
for warning men working on the route · 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 | B61L23/06 |
| Official title | for warning men working on the route |
| Display label | for warning men working on the route |
| Total patents | 70 |
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 | 4 |
| 2017 | 2 |
| 2018 | 11 |
| 2019 | 5 |
| 2020 | 9 |
| 2021 | 8 |
| 2022 | 5 |
| 2023 | 9 |
| 2024 | 8 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system for three dimensional positioning in subway construction site, and medium
US-2024300555-A1 · Sep 12, 2024 · US
Work block encroachment warning system
US-2024199098-A1 · Jun 20, 2024 · US
Rail warning system and method
US-11866078-B2 · Jan 9, 2024 · US
Collision protection and safety system for rail vehicles
US-11866077-B2 · Jan 9, 2024 · US
Signal box controlled crew warning system
US-2023356762-A1 · Nov 9, 2023 · US
Operator protection system and method
US-2023242075-A1 · Aug 3, 2023 · US
Methods for modulating inflammasome activity and inflammation in the lung
US-2023238030-A1 · Jul 27, 2023 · US
Work block encroachment warning system
US-11708099-B2 · Jul 25, 2023 · US
Vehicle control system and method
US-11691657-B2 · Jul 4, 2023 · US
Work zone instruction verification system
US-11639188-B2 · May 2, 2023 · US
Operator protection system and method
US-2023118030-A1 · Apr 20, 2023 · US
System and method for railroad personnel safety assurance
US-2023053030-A1 · Feb 16, 2023 · US
Method and monitoring system for determining a position of a rail vehicle
US-2023022877-A1 · Jan 26, 2023 · US
System and method for railroad personnel safety assurance
US-11414111-B1 · Aug 16, 2022 · US
Early warning protection system based on beidou position automatic sensing
US-2022242464-A1 · Aug 4, 2022 · US
Methods for modulating inflammasome activity and inflammation in the lung
US-2022169715-A1 · Jun 2, 2022 · US
Automated railroad safety systems
US-2022073117-A1 · Mar 10, 2022 · US
Collision protection and safety system for rail vehicles
US-2022032980-A1 · Feb 3, 2022 · US
Automated railroad safety systems
US-11173934-B2 · Nov 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61L23/06?
- CPC B61L23/06 is the Cooperative Patent Classification code for “for warning men working on the route.”
- How many patents are filed under CPC B61L23/06 (for warning men working on the route)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC B61L23/06 growing?
- Publication counts under this code: 8 in 2024 vs 5 in 2025 (latest complete years).