B61L 3/20
Employing different frequencies or coded pulse groups
Official title: employing different frequencies or coded pulse groups {, e.g. using currents carried by traction current}
B61L3/20 (Employing different frequencies or coded pulse groups) appears on 8 US grants and 7 published applications in this corpus.
Search patents in B61L- Granted patents
- 8
- Published applications
- 7
- Assignees
- 5
- Inventors
- 21
- Latest grant
- 2 Apr 2024
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| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
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| 2024 | 1 | 0 |
By publication year.
Recent patents
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- Charging system for electric vehicles25 Jan 2022US 11,230,309 B2Transtech of South Carolina
- Communication system and method for a rail vehicle consist2 Sep 2014US 8,825,239 B2General Electric Company
- Rail vehicle control communication system and method for communicating with a rail vehicle22 Apr 2014US 8,702,043 B2General Electric Company
- Rail appliance communication system and method for communicating with a rail appliance4 Jun 2013US 8,457,815 B2General Electric Company
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- Charging system for electric vehicles26 Dec 2019US 2019/0389497 A1Transtech of South Carolina
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Most cited
By later US patents
- Communication system and method for a rail vehicle consist234US 8,825,239 B2General Electric Company · 2014
- Rail vehicle control communication system and method for communicating with a rail vehicle12US 8,702,043 B2General Electric Company · 2014
- Method and device for transmitting and receiving a control signal to a vehicle10US 6,597,137 B1Siemens Aktiengesellschaft · 2003
- Rail appliance communication system and method for communicating with a rail appliance6US 8,457,815 B2General Electric Company · 2013
- Rail communication system and method for communicating with a rail vehicle5US 8,423,208 B2General Electric Company · 2013