E01F 9/573
Self-righting, upright flexible or rockable markers
Official title: {Self-righting, upright flexible or rockable markers, e.g. resilient flaps bending over (depressible road surface signs or flexible vehicle-striking members for audible warning E01F9/602)}
E01F9/573 (Self-righting, upright flexible or rockable markers) appears on 38 US grants and 23 published applications in this corpus.
Search patents in E01F- Granted patents
- 38
- Published applications
- 23
- Assignees
- 11
- Inventors
- 38
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 3 | 7 |
| 2005 | 8 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 4 |
| 2018 | 1 | 2 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Temporary flexible pavement markers24 Jun 2025US 12,338,591 B2Trafco Industries, Inc.
- Temporary flexible pavement markers6 Dec 2022US 11,519,144 B2Trafco Industries, Inc.
- Temporary flexible pavement marker29 Jun 2021US 11,047,097 B2Trafco Industries, Inc.
- Safety fence support device with flexibility17 Jul 2018US 10,022,611 B2
- Traffic control light strip12 Dec 2017US 9,841,152 B2
- Temporary flexible pavement markers2 Mar 2023US 2023/0068480 A1Trafco Industries, Inc.
- A road marking and a method for road marking17 Mar 2022US 2022/0081856 A1InsinööRitoimisto ProinsinööRit Oy
- Pavement Marker2 May 2019US 2019/0127932 A1
- Sign assembly13 Sep 2018US 2018/0258597 A1Surface Safety Signs Pty Ltd
- Temporary flexible pavement markers4 Jan 2018US 2018/0002877 A1Trafco Industries, Inc.
Most cited
By later US patents
- Road marker40US 3,963,362 ACarlisle Corporation · 1976
- Elastomeric pavement marker having improved configuration36US 4,521,129 AMinnesota Mining and Manufacturing Company · 1985
- Low-profile raised retroreflective pavement marker31US 4,035,059 AMinnesota Mining and Manufacturing Company · 1977
- Elastomeric pavement marker29US 4,534,673 AMinnesota Mining and Manufacturing Company · 1985
- Resilient marker25US 4,445,803 A1984