E01B 9/14
Plugs, sleeves, thread linings, or other inserts for holes in sleepers
Official title: Plugs, sleeves, thread linings, or other inserts for holes in sleepers (inserting plugs or sleeves E01B31/26)
E01B9/14 (Plugs, sleeves, thread linings, or other inserts for holes in sleepers) appears on 52 US grants and 22 published applications in this corpus.
Search patents in E01B- Granted patents
- 52
- Published applications
- 22
- Assignees
- 33
- Inventors
- 101
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 1 |
| 2004 | 3 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 2 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 1 |
| 2019 | 3 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Railroad spike stabilizer for railroad and construction applications4 Nov 2025US 12,460,355 B1FTS Tools, LLC
- Rail fastening system27 Feb 2024US 11,913,177 B2Shiwihag AG
- Adjustable device for railway to cross active faults23 May 2023US 11,655,595 B1Institute of Geology and Geophysics, Chinese Academy of Sciences
- Method for maintaining wood railroad ties25 Oct 2022US 11,479,920 B1Railroad Solutions, Inc.
- Composition, device, and method for maintaining wood railroad ties22 Feb 2022US 11,255,053 B2Railroad Solutions, Inc.
- Railroad Spike Stabilizer for Railroad and Construction Applications2 Jul 2026US 2026/0185307 A1FTS Tools, LLC
- Method for maintaining wood railroad ties13 Oct 2022US 2022/0325480 A1Railroad Solutions, Inc.
- Composition and method for maintaining wood railroad ties25 Nov 2021US 2021/0363702 A1Railroad Solutions, Inc.
- Composition, device, and method for maintaining wood railroad ties25 Feb 2021US 2021/0054575 A1Railroad Solutions, Inc.
- Rail fastening system22 Oct 2020US 2020/0332474 A1Schwihag AG
Most cited
By later US patents
- Electrically insulated threaded fastener anchor49US 6,350,093 B1CXT Incorporated · 2002
- Screw fixing device for a concrete construction element37US 5,085,547 AEstablissements Vape S.A. · 1992
- Anchoring sleeve26US 5,740,651 AVape Rail International S.A. · 1998
- Railway track hold-down hardware21US 4,179,067 A1979
- Attachment anchor assembly21US 5,568,711 AHilti Aktiengesellschaft · 1996