Three-rail power supply system
US-12496935-B2 · Dec 16, 2025 · US
Trolley lines; Accessories therefor
Trolley lines; Accessories therefor · 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 | B60M1/12 |
| Official title | Trolley lines; Accessories therefor |
| Display label | Trolley lines; Accessories therefor |
| Total patents | 61 |
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 | 10 |
| 2017 | 7 |
| 2018 | 12 |
| 2019 | 10 |
| 2020 | 11 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Overhead line system with a skewed parallel zone
US-2024367555-A1 · Nov 7, 2024 · US
Three-rail power supply system
US-2024262210-A1 · Aug 8, 2024 · US
Vehicle power supply system
US-2023278438-A1 · Sep 7, 2023 · US
Control system for maintaining alignment of machine on a trolley assist
US-11610484-B1 · Mar 21, 2023 · US
Monitor device and trolley type vehicle
US-11468685-B2 · Oct 11, 2022 · US
Circuit system for railroad vehicle
US-11097620-B2 · Aug 24, 2021 · US
Station building power supply device and charged-state detection method
US-10889206-B2 · Jan 12, 2021 · US
Electrified railway power grid system without negative sequence in whole process and without power supply networks at intervals
US-10850637-B2 · Dec 1, 2020 · US
Motor vehicle, system and method for operating such a motor vehicle and such a system
US-10836430-B2 · Nov 17, 2020 · US
Device and a method for operating a rail vehicle without an overhead line
US-10793006-B2 · Oct 6, 2020 · US
Monitor Device and Trolley Type Vehicle
US-2020285861-A1 · Sep 10, 2020 · US
Trolley-wire display device, trolley-wire display system, and trolley-wire display data creation method
US-10740936-B2 · Aug 11, 2020 · US
Monitor vehicle for a rail system and method thereof
US-10618534-B2 · Apr 14, 2020 · US
Contact wire clamps
US-10618429-B2 · Apr 14, 2020 · US
Trolley-wire display device, trolley-wire display system, and trolley-wire display data creation method
US-2020066011-A1 · Feb 27, 2020 · US
Monitor vehicle for a rail system and method thereof
US-2020062285-A1 · Feb 27, 2020 · US
Electrified road transport system
US-2020062143-A1 · Feb 27, 2020 · US
Suspended underfloor power converter
US-10569665-B2 · Feb 25, 2020 · US
Power converter
US-10518660-B2 · Dec 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B60M1/12?
- CPC B60M1/12 is the Cooperative Patent Classification code for “Trolley lines; Accessories therefor.”
- How many patents are filed under CPC B60M1/12 (Trolley lines; Accessories therefor)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC B60M1/12 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).