E01B 21/02
Special supporting means
Official title: Special supporting means; Draining of rails
E01B21/02 (Special supporting means) appears on 11 US grants and 11 published applications in this corpus.
Search patents in E01B- Granted patents
- 11
- Published applications
- 11
- Assignees
- 13
- Inventors
- 30
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- 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
- Sealing device for a railway29 Jun 2021US 11,047,093 B2Alstom Transport Technologies
- Fishplate comprising a protective strip30 Oct 2018US 10,113,272 B2Plastiform's
- Drain channel for a tramway track7 Feb 2017US 9,562,331 B2Aco, Inc.
- Rail junction assembly13 May 2021US 2021/0140121 A1Embedded Rail Technology Limited
- Rail boot10 Sep 2020US 2020/0283963 A1Dacon Industries
- Rail assembly for rail vehicles having flanged wheels5 Mar 2020US 2020/0071884 A1Daetwyler Sealing Technologies Deutschland GmbH
- Sealing Device for a Railway9 May 2019US 2019/0136461 A1Alstom Transport Technologies
- Fishplate comprising a protective strip15 Dec 2016US 2016/0362846 A1Plastiform's
Most cited
By later US patents
- Embedded track assembly30US 4,793,545 AConstruction Polymers Company · 1988
- Polymer embedment of rails10US 6,270,017 B1ALH Rail Coatings Limited · 2001
- Electrically insulating rail system8US 6,471,138 B1Phoenix Aktiengesellschaft · 2002
- Rail boot6US 6,588,677 B2Iron Horse Engineering Co. · 2003
- Polymer embedment of rails4US 6,354,512 B2ALH Rail Coatings Limited · 2002