Connection connector for drive units
US-12594837-B2 · Apr 7, 2026 · US
fed from DC supply lines
fed from DC supply lines · 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 | B60L9/04 |
| Official title | fed from DC supply lines |
| Display label | fed from DC supply lines |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Construction machine
US-12508919-B2 · Dec 30, 2025 · US
Power supply for a rail vehicle, having a traction battery
US-2025074201-A1 · Mar 6, 2025 · US
Connection Connector for Drive Units
US-2024270080-A1 · Aug 15, 2024 · US
Construction machine
US-2024010075-A1 · Jan 11, 2024 · US
A method for a procedure of connection and disconnection of a vehicle to/from a plurality of electrical lines
US-2023406114-A1 · Dec 21, 2023 · US
Vehicle electrical power system
US-11577674-B2 · Feb 14, 2023 · US
Vehicle electrical power system
US-2022009429-A1 · Jan 13, 2022 · US
DC traction sub-station for supplying at least one vehicle
US-11128138-B2 · Sep 21, 2021 · US
Dc traction sub-station for supplying at least one vehicle
US-2020235579-A1 · Jul 23, 2020 · US
Trolley interfacing device having a pre-charging unit
US-10300791-B2 · May 28, 2019 · US
Electric vehicle controller
US-9975433-B2 · May 22, 2018 · US
Electric vehicle controller
US-2017232847-A1 · Aug 17, 2017 · US
Trolley interfacing device having a pre-charging unit
US-2017174087-A1 · Jun 22, 2017 · US
Systems and methods for powering an airborne vehicle from a ground power supply
US-2017144754-A1 · May 25, 2017 · US
In-car information display system and power supply method
US-9511784-B2 · Dec 6, 2016 · US
System, apparatus, and method for automatically controlling a locomotive
US-9469310-B2 · Oct 18, 2016 · US
Transport vehicle equipped with current collector
US-9315107-B2 · Apr 19, 2016 · US
Electric energy storage device and installation-operation method thereof
US-9312717-B2 · Apr 12, 2016 · US
Circuit breaker controller for electric train
US-9260014-B2 · Feb 16, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B60L9/04?
- CPC B60L9/04 is the Cooperative Patent Classification code for “fed from DC supply lines.”
- How many patents are filed under CPC B60L9/04 (fed from DC supply lines)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC B60L9/04 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).