E01B 11/54
Electrically-insulating rail joints
E01B11/54 (Electrically-insulating rail joints) appears on 34 US grants and 31 published applications in this corpus.
Search patents in E01B- Granted patents
- 34
- Published applications
- 31
- Assignees
- 20
- Inventors
- 59
- Latest grant
- 12 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 3 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 3 | 4 |
| 2011 | 3 | 1 |
| 2012 | 3 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 3 |
| 2020 | 0 | 0 |
| 2021 | 3 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 3 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Curved insulated rail joint bar and methods for making same12 Nov 2024US 12,139,857 B2L. B. Foster Company
- Method for sealing a casting mould for aluminothermic rail weldings29 Oct 2024US 12,128,496 B2Goldschmidt Holding GmbH
- Gauge plate insulator16 Jul 2024US 12,037,750 B2Koppers Delaware, Inc.
- Composite rail joint end post2 May 2023US 11,639,584 B2L. B. Foster Company
- Center supported bond joint22 Jun 2021US 11,041,274 B2Koppers Delaware, Inc.
- Bonded electrically insulated joint system for railway rails, method for fabricating such, method of modifying at least one starting type switch rail and use of two switch rails modified in accordance with said modifying method2 Oct 2025US 2025/0305220 A1AB Consulting S.a.s. di Andrea Bracciali & C.
- Rail Brace Assembly23 May 2024US 2024/0167231 A1Koppers Delaware, Inc.
- End Post Gap Fill Assembly13 Apr 2023US 2023/0110305 A1Koppers Delaware, Inc.
- Curved insulated rail joint bar and methods for making same23 Jun 2022US 2022/0195673 A1L. B. Foster Company
- Method for sealing a casting mould for aluminothermic rail weldings30 Sep 2021US 2021/0299780 A1Goldschmidt Holding GmbH
Most cited
By later US patents
- Insulated rail joint incorporating spacer-impregnated adhesive and method for bonding insulated rail joints23US 5,503,331 APortec-RMP Division · 1996
- Adhesively bonded rail joint21US 3,952,948 AMinnesota Mining and Manufacturing Company · 1976
- Separated end post joint17US 4,773,590 ATASA Corporation · 1988
- Multi-segment electrically insulated rail joint13US 4,466,570 ANew York City Transit Authority · 1984
- Fabric-reinforced bonding sheet comprising an epoxy resin and dianiline and use thereof to make an insulated rail joint9US 4,292,110 AMinnesota Mining and Manufacturing Company · 1981