E01B 21/00
Track superstructure adapted for tramways in paved streets
Official title: Track superstructure adapted for tramways in paved streets (paving E01C9/04, E01C9/06)
E01B21/00 (Track superstructure adapted for tramways in paved streets) appears on 48 US grants and 30 published applications in this corpus.
Search patents in E01B- Granted patents
- 48
- Published applications
- 30
- Assignees
- 36
- Inventors
- 94
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 0 |
| 2003 | 3 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 4 |
| 2013 | 3 | 0 |
| 2014 | 0 | 1 |
| 2015 | 3 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 4 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Light railway system8 Apr 2025US 12,270,158 B2Carpet Track Ltd
- Rail junction assembly4 Feb 2025US 12,215,465 B2Embedded Rail Technology Limited
- Rail assembly for rail vehicles having flanged wheels6 Feb 2024US 11,891,760 B2Daetwyler Sealing Technologies Deutschland GmbH
- Damping arrangement for tracks5 Oct 2021US 11,136,725 B2Daetwyler Sealing Technologies Deutschland GmbH
- Sealing device for a railway29 Jun 2021US 11,047,093 B2Alstom Transport Technologies
- Track17 Jul 2025US 2025/0230611 A1Tdi Greenway Technologies Ltd.
- Cribbing system and method6 Jun 2024US 2024/0183114 A1Transportation IP Holdings, LLC
- Light Railway System6 Oct 2022US 2022/0316143 A1Carpet Track Ltd
- Rail junction assembly13 May 2021US 2021/0140121 A1Embedded Rail Technology Limited
- Rail boot10 Sep 2020US 2020/0283963 A1Dacon Industries
Most cited
By later US patents
- Embedded track assembly30US 4,793,545 AConstruction Polymers Company · 1988
- Railroad track assembly and method21US 5,609,294 A1997
- Concrete grade crossing panels having integral elastomeric seals16US 5,535,948 AOmni Products, Inc. · 1996
- Method and apparatus for electrically isolating a rail in a precast concrete grade crossing15US 5,464,152 APacific International Pipe Enterprises, Inc. · 1995
- Embedded railway track system15US 5,535,947 A1996