B61L 23/18
Specially adapted for changing lengths of track sections in dependence upon speed
Official title: specially adapted for changing lengths of track sections in dependence upon speed and traffic density
B61L23/18 (Specially adapted for changing lengths of track sections in dependence upon speed) appears on 19 US grants and 22 published applications in this corpus.
Search patents in B61L- Granted patents
- 19
- Published applications
- 22
- Assignees
- 11
- Inventors
- 50
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 2 | 5 |
| 2025 | 7 | 2 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
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