E01B 21/04
Special fastenings, joint constructions, or tie-rods
E01B21/04 (Special fastenings, joint constructions, or tie-rods) appears on 5 US grants and 2 published applications in this corpus.
Search patents in E01B- Granted patents
- 5
- Published applications
- 2
- Assignees
- 4
- Inventors
- 6
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 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 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Light railway system8 Apr 2025US 12,270,158 B2Carpet Track Ltd
- Method of constructing a rail track on a track-receiving concrete slab22 Jun 2004US 6,752,322 B2Alstom
- Apparatus and method for railway crossing structure30 May 2000US 6,068,195 ACentury Group, L.L.C.
- Embedded railway track system26 Nov 1996US 5,577,662 A
- Embedded railway track system16 Jul 1996US 5,535,947 A
Most cited
By later US patents