E01B 31/24
Forming, treating, reconditioning, or cleaning holes in sleepers
Official title: Forming, treating, reconditioning, or cleaning holes in sleepers; Drilling-templates (E01B29/28, E01B31/26 take precedence)
E01B31/24 (Forming, treating, reconditioning, or cleaning holes in sleepers) appears on 13 US grants and 10 published applications in this corpus.
Search patents in E01B- Granted patents
- 13
- Published applications
- 10
- Assignees
- 7
- Inventors
- 29
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Drill for drilling railway sleepers21 Jan 2025US 12,202,056 B2Cembre S.p.A.
- Rail tool-holder cart26 Mar 2024US 11,939,727 B2Cembre S.p.A.
- Polymeric plugging composition21 Nov 2023US 11,820,856 B2The Williamette Valley Company LLC
- Railroad tie preservation system14 Jun 2022US 11,359,336 B2
- Method for manufacturing a railway track support, associated railway track support and railway installation10 Aug 2021US 11,085,153 B2Alstom Transport Technologies
- Vision-Based Railway Component Characterization and Method22 Feb 2024US 2024/0060245 A1Racine Railroad Products, Inc.
- A drill for drilling railway sleepers10 Jun 2021US 2021/0170501 A1Cembre S.p.A.
- A rail tool-holder cart30 Jul 2020US 2020/0240088 A1Cembre S.p.A.
- Railroad Tie Preservation System26 Mar 2020US 2020/0095734 A1
- Polymeric Plugging Composition6 Feb 2020US 2020/0040129 A1Willamette Valley Company
Most cited
By later US patents
- Drill for drilling crossties, particularly for use in the railroad sector67US 5,961,257 ACembre S.p.A. · 1999
- In situ preservative treatment of railroad tie7US 4,738,878 AOsmose Wood Preserving, Inc. · 1988
- Method for restoring used railroad ties and the restored railroad ties formed thereby6US 5,952,072 AWillamette Valley Company · 1999
- Tie plugging machine and method3US 9,617,692 B2Racine Railroad Products, Inc. · 2017
- Railroad tie treating method and apparatuses2US 5,046,448 A1991