B61D 41/04
Indicators for reserved seats
B61D41/04 (Indicators for reserved seats) appears on 5 US grants and 9 published applications in this corpus.
Search patents in B61D- Granted patents
- 5
- Published applications
- 9
- Assignees
- 10
- Inventors
- 25
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 3 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Multi-carriage vehicle boarding recommendations7 Apr 2026US 12,594,974 B2DISH Network Technologies India Private Limited
- Method for controlling the occupancy of vehicle seats by passengers, and associated devices11 Mar 2025US 12,246,759 B2ALSTOM Holdings
- Smart train12 Apr 2022US 11,301,648 B2International Business Machines Corporation
- System for managing space available and seats for passengers for use of a passenger transport system26 Jan 2021US 10,899,371 B2Italdesign-Giugiaro S.P. A.
- System for identifying a seat location20 Oct 2020US 10,807,616 B2Siemens Mobility GmbH
- Multi-carriage vehicle boarding recommendations3 Jul 2025US 2025/0214632 A1DISH Network Technologies India Private Limited
- Method and system for identifying traveling backward passengers and boarding trains in rail transit18 Nov 2021US 2021/0354731 A1
- Method for controlling the occupancy of vehicle seats by passengers, and associated devices18 Nov 2021US 2021/0354732 A1Alstom Transport Technologies
- Illuminated vehicle headrest20 Feb 2020US 2020/0055448 A1Windsor Machine and Stamping (2009) Ltd.
- Smart train1 Aug 2019US 2019/0236322 A1International Business Machines Corporation
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.