E01B 9/681
Characterised by the material
Official title: {characterised by the material}
E01B9/681 (Characterised by the material) appears on 73 US grants and 30 published applications in this corpus.
Search patents in E01B- Granted patents
- 73
- Published applications
- 30
- Assignees
- 49
- Inventors
- 148
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 6 | 1 |
| 2003 | 3 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 0 | 1 |
| 2016 | 2 | 2 |
| 2017 | 0 | 2 |
| 2018 | 2 | 2 |
| 2019 | 2 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 3 |
| 2022 | 3 | 2 |
| 2023 | 2 | 0 |
| 2024 | 1 | 3 |
| 2025 | 0 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rail fastening system and associated rail track19 May 2026US 12,630,982 B2Destec Pty Ltd
- Track rail fastening system and rail cushion for same21 Apr 2026US 12,606,962 B2Progress Rail Services Corporation
- Vehicle rail mounting device19 Nov 2024US 12,146,271 B2Specter Innovations Group Pty Ltd.
- High-resilient special trackwork rail fastener24 Oct 2023US 11,795,627 B2L. B. Foster Company
- Transparent railroad railseat assembly25 Apr 2023US 11,634,872 B2Pandrol Limited
- Rail fastening system and associated rail track3 Sep 2026US 2026/0258609 A1Destec Pty Ltd
- Tie guide, replaceable pad, and method of using the same13 Aug 2026US 2026/0234875 A1Transportation IP Holdings, LLC
- High resilient direct fixation fastener in standard footprint24 Jul 2025US 2025/0237020 A1L. B. Foster Company
- Under sleeper pad13 Jun 2024US 2024/0191438 A1Getzner Werkstoffe Holding GmbH
- Multi-material rail pad and method for manufacturing same9 May 2024US 2024/0150970 A1Ecole Polytechnique Federale De Lausanne (Epfl)
Most cited
By later US patents
- Electrothermally deformable levelling pad42US 3,936,661 AMatsushita Electric Industrial Co., Ltd. · 1976
- Railroad tie pad27US 5,730,357 AAirboss of America Corp. · 1998
- Rail plate having spring clips and lateral positioning means24US 4,047,663 A1977
- Rail fastening system24US 5,110,046 AMcKay Australia Limited · 1992
- Device for attaching a rail to a bearing element23US 4,907,740 AVossloh-Werke GmbH · 1990