E01B 11/52
Joints made by alumino-thermal welding
E01B11/52 (Joints made by alumino-thermal welding) appears on 18 US grants and 7 published applications in this corpus.
Search patents in E01B- Granted patents
- 18
- Published applications
- 7
- Assignees
- 13
- Inventors
- 31
- Latest grant
- 27 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Moulding assembly for aluminothermic welding of rails and method for aluminothermic welding of rails27 Dec 2022US 11,534,856 B2Pandrol Limited
- Method and mould for welding the ends of two rail portions3 Jul 2018US 10,011,956 B2Sncf Reseau
- Method and device for the aluminothermic welding of rails20 Oct 2015US 9,163,360 B2Railtech International
- Welding structure with double-inclined surface of no bumping and no vibration seamless rail with high load-bearing capability20 Oct 2015US 9,163,361 B2Jilin University
- Crucible cover for aluminothermic reaction18 May 2010US 7,717,286 B2Railtech International
- Moulding Assembly For Aluminothermic Welding Of Rails And Method For Aluminothermic Welding Of Rails22 Oct 2020US 2020/0331094 A1Pandrol Limited
- Method and mould for welding the ends of two rail portions17 Dec 2015US 2015/0361620 A1Societe Nationale Des Chemins De Fer Francais Sncf
- Method and device for the aluminothermic welding of rails3 Jul 2014US 2014/0182803 A1Railtech International
- Welding Structure with Double-Inclined Surface of No Bumping and No Vibration Seamless Rail with High Load-Bearing Capability25 Jul 2013US 2013/0186968 A1Jilin University
- Crucible cover for aluminothermic reaction16 Mar 2006US 2006/0054626 A1Railtech International
Most cited
By later US patents
- Process for performing aluminothermic rail connection weldings as well as multipart casting mold for performing the process9US 4,250,944 AElektrothermit GmbH · 1981
- Method of cast-welding between finely pearlitized rails8US 5,078,200 AElektro-Thermit GmbH · 1992
- Method and mold for aluminothermic welding of rails8US 5,215,139 AOrgo-Thermit Inc. · 1993
- Casting mold for aluminothermically welding rails together7US 4,247,074 AElektro-Thermit GmbH · 1981
- Process for the aluminothermic welding of rails6US 3,942,579 AElektro-Thermit GmbH · 1976