E01F 9/00
Arrangement of road signs or traffic signals
Official title: Arrangement of road signs or traffic signals; Arrangements for enforcing caution (for obstructing or restricting traffic E01F13/00)
E01F9/00 (Arrangement of road signs or traffic signals) appears on 2,824 US grants and 2,028 published applications in this corpus.
Search patents in E01F- Granted patents
- 2,824
- Published applications
- 2,028
- Assignees
- 1,062
- Inventors
- 4,067
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 40 | 0 |
| 1977 | 28 | 0 |
| 1978 | 41 | 0 |
| 1979 | 22 | 0 |
| 1980 | 35 | 0 |
| 1981 | 36 | 0 |
| 1982 | 30 | 0 |
| 1983 | 23 | 0 |
| 1984 | 28 | 0 |
| 1985 | 29 | 0 |
| 1986 | 46 | 0 |
| 1987 | 41 | 0 |
| 1988 | 43 | 0 |
| 1989 | 51 | 0 |
| 1990 | 47 | 0 |
| 1991 | 66 | 0 |
| 1992 | 56 | 0 |
| 1993 | 58 | 0 |
| 1994 | 53 | 0 |
| 1995 | 82 | 0 |
| 1996 | 70 | 0 |
| 1997 | 68 | 0 |
| 1998 | 79 | 0 |
| 1999 | 73 | 0 |
| 2000 | 85 | 0 |
| 2001 | 75 | 22 |
| 2002 | 75 | 71 |
| 2003 | 68 | 72 |
| 2004 | 58 | 76 |
| 2005 | 54 | 79 |
| 2006 | 53 | 90 |
| 2007 | 39 | 62 |
| 2008 | 34 | 69 |
| 2009 | 41 | 65 |
| 2010 | 54 | 78 |
| 2011 | 37 | 53 |
| 2012 | 46 | 51 |
| 2013 | 40 | 68 |
| 2014 | 49 | 87 |
| 2015 | 58 | 71 |
| 2016 | 73 | 94 |
| 2017 | 79 | 96 |
| 2018 | 66 | 99 |
| 2019 | 85 | 119 |
| 2020 | 92 | 115 |
| 2021 | 77 | 90 |
| 2022 | 85 | 108 |
| 2023 | 75 | 99 |
| 2024 | 75 | 75 |
| 2025 | 69 | 74 |
| 2026 | 37 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Monitoring and control of traffic control devices in work zones8 Oct 2026US 2026/0308857 A1
- Base member for a bollard1 Oct 2026US 2026/0297871 A1Atg Access Ltd.
- Bollard1 Oct 2026US 2026/0297872 A1Atg Access Ltd.
- Torque-Limiting Coupling System for Use in Breakaway Mounting Systems for Roadway Signposts and Methods of Use1 Oct 2026US 2026/0298294 A1
- System and method for providing traffic congestion relief using dynamic lighted road lane markings24 Sep 2026US 2026/0290157 A1
Most cited
By later US patents
- Illuminating device487US 5,136,483 A1992
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- Embedded led lighting system198US 6,354,714 B12002