Conduitless crossing gate with swivel support for crossing gate mechanism
US-2026084733-A1 · Mar 26, 2026 · US
Gates for level crossings
Gates for level crossings · 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 | B61L29/04 |
| Official title | Gates for level crossings |
| Display label | Gates for level crossings |
| Total patents | 43 |
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 | 1 |
| 2017 | 3 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 7 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 9 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Devices and methods for controlling a railroad crossing gate mechanism
US-2025360954-A1 · Nov 27, 2025 · US
Providing auto-calibration of accelerometer and/or hall-sense position counter in a crossing gate mechanism
US-2025334430-A1 · Oct 30, 2025 · US
Automated counterbalance system and method for determining counterbalance and adjusting counterweights of a crossing gate
US-12384435-B2 · Aug 12, 2025 · US
Device and method for detecting an obstruction of a railroad crossing gate
US-12384436-B2 · Aug 12, 2025 · US
Crossing gate mechanism with programmable electronic switching devices
US-2025058808-A1 · Feb 20, 2025 · US
Crossing gate mechanism with integrated position detection andangle measurement
US-2024326884-A1 · Oct 3, 2024 · US
Dynamic load system and method for simulating a crossing gate mechanism
US-12095401-B2 · Sep 17, 2024 · US
Adaptor assembly for a gate mechanism
US-12065180-B2 · Aug 20, 2024 · US
Tamperproof gate mechanism
US-12065181-B2 · Aug 20, 2024 · US
Method for withdrawal of a bearing from a gate mechanism
US-12038049-B2 · Jul 16, 2024 · US
Highway grade crossing gate system including a gate mechanism to rotate a gate arm with human machine interface and voltage reduction circuit
US-12005945-B2 · Jun 11, 2024 · US
Smart cam for digitalization of a gate mechanism
US-11938985-B2 · Mar 26, 2024 · US
Device and method for detecting an obstruction of a railroad crossing gate
US-2024059331-A1 · Feb 22, 2024 · US
Method and apparatus for recognition of obstacles in a danger zone, railroad crossing, platform, computer program product and provision apparatus
US-2024001976-A1 · Jan 4, 2024 · US
Systems and methods for determining passage status of a train at a railroad crossing
US-11753010-B2 · Sep 12, 2023 · US
Method for withdrawal of a bearing from a gate mechanism
US-2023279903-A1 · Sep 7, 2023 · US
Systems and methods for determining passage status of a train at a railroad crossing
US-2023100640-A1 · Mar 30, 2023 · US
Automated counterbalance system and method for determining counterbalance and adjusting counterweights of a crossing gate
US-2023073979-A1 · Mar 9, 2023 · US
Hall sensor fault detection for gate crossing mechanisms
US-11581788-B2 · Feb 14, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61L29/04?
- CPC B61L29/04 is the Cooperative Patent Classification code for “Gates for level crossings.”
- How many patents are filed under CPC B61L29/04 (Gates for level crossings)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC B61L29/04 growing?
- Publication counts under this code: 9 in 2024 vs 5 in 2025 (latest complete years).