E01F 15/0446
Concrete rails
Official title: {Concrete rails (E01F15/0476 takes precedence; safety kerbs or walls E01F15/08)}
E01F15/0446 (Concrete rails) appears on 11 US grants and 7 published applications in this corpus.
Search patents in E01F- Granted patents
- 11
- Published applications
- 7
- Assignees
- 9
- Inventors
- 28
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 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 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 3 |
| 2020 | 3 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Barrier system7 Oct 2025US 12,435,479 B2NUtech Ventures
- System for illuminating a carriageway in a case of fog30 Jul 2024US 12,049,736 B2
- Surrogate for concrete curb18 Jul 2023US 11,702,805 B2The Trustees of Indiana University
- Modular railing for on-site construction23 Jun 2020US 10,689,814 B2The Florida International University Board of Trustees
- Surrogate for metal guardrail23 Jun 2020US 10,689,818 B2Ohio State Innovation Foundation
- System for illuminating a carriageway in a case of fog15 Sep 2022US 2022/0290387 A1
- Surrogate for concrete curb3 Jun 2021US 2021/0164178 A1The Trustees of Indiana University
- Barrier System9 Jul 2020US 2020/0217028 A1NUtech Ventures
- Surrogate for metal guardrail10 Oct 2019US 2019/0309490 A1Ohio State Innovation Foundation
- Surrogate for concrete divider10 Oct 2019US 2019/0309491 A1Ohio State Innovation Foundation
Most cited
By later US patents
- Combination traffic barrier and retaining wall and method of construction34US 5,471,811 A1995
- Method and machine for slip forming median barrier walls for highways31US 4,266,917 AGOMACO Corporation · 1981
- Combination retaining wall and method of construction27US 5,588,786 AMarylyn House · 1996
- Used tire construction block8US 5,214,896 AThe United States of America as represented by the Secretary of the Army · 1993
- Modular railing for on-site construction2US 10,689,814 B2The Florida International University Board of Trustees · 2020