B61L 29/12
Manual operation
B61L29/12 (Manual operation) appears on 13 US grants and 17 published applications in this corpus.
Search patents in B61L- Granted patents
- 13
- Published applications
- 17
- Assignees
- 10
- Inventors
- 21
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 4 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Crossing gate mechanism with integrated position detection and angle measurement21 Jul 2026US 12,686,426 B2Siemens Mobility GmbH
- Device and method for responding to loss-of-brake on a railroad crossing gate mechanism11 Nov 2025US 12,466,453 B2Siemens Mobility GmbH
- Automated counterbalance system and method for determining counterbalance and adjusting counterweights of a crossing gate12 Aug 2025US 12,384,435 B2Siemens Mobility GmbH
- Highway grade crossing gate system including a gate mechanism to rotate a gate arm with human machine interface and voltage reduction circuit11 Jun 2024US 12,005,945 B2Siemens Mobility GmbH
- Supercapacitor power supply for a gate crossing mechanism6 Jun 2023US 11,667,311 B2Siemens Mobility GmbH
- Systems and methods for remote activation of railroad crossing signals12 Feb 2026US 2026/0042474 A1BNSF Railway Company
- Devices and methods for controlling a railroad crossing gate mechanism27 Nov 2025US 2025/0360954 A1Siemens Mobility GmbH
- Crossing gate mechanism with integrated position detection andangle measurement3 Oct 2024US 2024/0326884 A1Siemens Mobility GmbH
- Device and method for detecting and controlling an arm position of a railroad crossing gate mechanism1 Feb 2024US 2024/0034370 A1Siemens Mobility GmbH
- Device and method for responding to loss-of-brake on a railroad crossing gate mechanism1 Feb 2024US 2024/0034376 A1Siemens Mobility GmbH
Most cited
By later US patents
- Electronically controlled grade crossing gate system and method67US 7,195,211 B2General Electric Company · 2007
- Multiple direction railroad gate release mechanism8US 8,240,618 B1MTR Technologies, Inc. · 2012
- System and method for servicing a breakaway gate3US 8,485,478 B2MTR, Inc. · 2013
- Lock bar for railroad gate warning mechanism1US 7,690,702 B2Safetran Systems Corporation · 2010
- Multiple direction railroad gate release mechanism1US 8,640,996 B2MTR, Inc. · 2014