B61C 15/045
Specially adapted for tunnel systems vehicles
Official title: {Specially adapted for tunnel systems vehicles, e.g. with pressure increasing arrangements}
B61C15/045 (Specially adapted for tunnel systems vehicles) appears on 10 US grants and 9 published applications in this corpus.
Search patents in B61C- Granted patents
- 10
- Published applications
- 9
- Assignees
- 2
- Inventors
- 15
- Latest grant
- 30 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
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| 1983 | 0 | 0 |
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| 1993 | 0 | 0 |
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| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 2 | 2 |
| 2020 | 0 | 4 |
| 2021 | 1 | 0 |
| 2022 | 5 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Dynamic simulation test platform and method for ultra-high-speed evacuated tube magnetic levitation (maglev) transportation30 Apr 2024US 11,971,326 B2Southwest Jiaotong University
- Method of using air and hydrogen in low pressure tube transportation8 Feb 2022US 11,242,072 B2Hyperloop Transportation Technologies, Inc.
- Tube transportation systems using a gaseous mixture of air and hydrogen1 Feb 2022US 11,235,787 B2Hyperloop Transportation Technologies, Inc.
- Method of using air and helium in low-pressure tube transportation systems25 Jan 2022US 11,230,300 B2Hyperloop Transportation Technologies, Inc.
- High speed transportation in running tube as running rail11 Jan 2022US 11,220,278 B2
- Dynamic simulation test platform and method for ultra-high-speed evacuated tube magnetic levitation (maglev) transportation1 Feb 2024US 2024/0035930 A1Southwest Jiaotong University
- Combined Pumping / Gas Source Unit Configured For Use in a Tubular Transportation System19 May 2022US 2022/0153317 A1Hyperloop Transportation Technologies, Inc.
- Injection System and Method for Injecting Helium and/or Hydrogen in Critical Aerodynamic Areas Around a Capsule in a Tube Transportation System19 May 2022US 2022/0153318 A1Hyperloop Transportation Technologies, Inc.
- Method and an article of manufacture for determining optimum operating points for power/cost and helium-air ratios in a tubular transportation system2 Jan 2020US 2020/0001897 A1Hyperloop Transportation Technologies, Inc.
- Method of using air and helium in low-pressure tube transportation systems2 Jan 2020US 2020/0001898 A1Hyperloop Transportation Technologies, Inc.
Most cited
By later US patents
- Rail vehicles with propulsion energy recovery system101US 4,108,077 A1978
- Method of using air and helium in low-pressure tube transportation systems3US 10,286,928 B1Hyperloop Transportation Technologies, Inc. · 2019
- Tube transportation systems using a gaseous mixture of air and helium1US 10,286,927 B1Hyperloop Transportation Technologies, Inc. · 2019
- High speed transportation with transporter enveloped by low pressure in running tube1US 11,198,451 B22021