Multi-carriage vehicle boarding recommendations
US-2025214632-A1 · Jul 3, 2025 · US
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Indicators for reserved seats
Indicators for reserved seats · 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 | B61D41/04 |
| Official title | Indicators for reserved seats |
| Display label | Indicators for reserved seats |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling the occupancy of vehicle seats by passengers, and associated devices
US-12246759-B2 · Mar 11, 2025 · US
Passenger vehicle and operation management system
US-11961400-B2 · Apr 16, 2024 · US
Passenger vehicle and operation management system
US-2022415172-A1 · Dec 29, 2022 · US
Smart train
US-11301648-B2 · Apr 12, 2022 · US
Method and system for identifying traveling backward passengers and boarding trains in rail transit
US-2021354731-A1 · Nov 18, 2021 · US
Method for controlling the occupancy of vehicle seats by passengers, and associated devices
US-2021354732-A1 · Nov 18, 2021 · US
System for identifying a seat location
US-10807616-B2 · Oct 20, 2020 · US
Display device for a seat identifier, and vehicle
US-10783838-B2 · Sep 22, 2020 · US
Smart train
US-2019236322-A1 · Aug 1, 2019 · US
Display device for a seat identifier, and vehicle
US-2019080655-A1 · Mar 14, 2019 · US
System For Identifying A Seat Location
US-2018201280-A1 · Jul 19, 2018 · US