E01B 3/40
Slabs
Official title: Slabs; Blocks; Pot sleepers; Fastening tie-rods to them
E01B3/40 (Slabs) appears on 32 US grants and 38 published applications in this corpus.
Search patents in E01B- Granted patents
- 32
- Published applications
- 38
- Assignees
- 34
- Inventors
- 90
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 3 |
| 2019 | 3 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 4 |
| 2022 | 0 | 3 |
| 2023 | 1 | 1 |
| 2024 | 3 | 5 |
| 2025 | 2 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ballastless track section for a rail vehicle21 Oct 2025US 12,448,736 B2Systra
- Turnout arrangement with elastically supported turnout bases18 Mar 2025US 12,252,847 B2PORR Bau GmbH
- Track rail fastening system having cantilevered third rail support bracket and direct fixation fastener assembly for same26 Nov 2024US 12,152,351 B2Progress Rail Services Corporation
- Formwork for the construction of railway platforms24 Sep 2024US 12,097,639 B2Overail S.R.L.
- Sleeper6 Aug 2024US 12,054,890 B2
- Direct Fixation Block Assembly15 Jan 2026US 2026/0015802 A1voestalpine Railway Systems Nortrak LLC
- Track17 Jul 2025US 2025/0230611 A1Tdi Greenway Technologies Ltd.
- Track rail fastening system having cantilevered third rail support bracket and direct fixation fastener assembly for same16 Jan 2025US 2025/0019907 A1Progress Rail Services Corporation
- Process and system for laying tracks for underground, railway and tramway lines11 Jul 2024US 2024/0229364 A9Overail S.R.L.
- Assembly comprising at least one rail and a support11 Jul 2024US 2024/0229365 A1Vossloh Cogifer
Most cited
By later US patents
- Railroad track fixation method and apparatus16US 4,616,395 APerini Corporation · 1986
- Method of and arrangement for correcting the height of railway upper structures15US 4,232,822 AEd. Zublin Aktiengesellschaft · 1980
- Railroad rail support and process for manufacture9US 5,464,153 A1995
- Rail support device for unballasted railway track8US 5,551,631 AAllevard · 1996
- Pre-assembled plate consisting of armoured concrete7US 7,556,208 B1Max Bogl Bauunternehmung GmbH & Co. KG · 2009