E01F 9/681
The sign posts being fastened by removable means
Official title: the sign posts being fastened by removable means, e.g. screws or bolts
E01F9/681 (The sign posts being fastened by removable means) appears on 77 US grants and 68 published applications in this corpus.
Search patents in E01F- Granted patents
- 77
- Published applications
- 68
- Assignees
- 46
- Inventors
- 125
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 8 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 3 |
| 2003 | 2 | 2 |
| 2004 | 1 | 5 |
| 2005 | 2 | 2 |
| 2006 | 0 | 4 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 2 |
| 2010 | 3 | 5 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 1 |
| 2014 | 3 | 4 |
| 2015 | 1 | 1 |
| 2016 | 2 | 7 |
| 2017 | 2 | 2 |
| 2018 | 4 | 4 |
| 2019 | 2 | 2 |
| 2020 | 1 | 5 |
| 2021 | 3 | 5 |
| 2022 | 5 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 0 | 4 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Safe zone post assembly8 Sep 2026US 12,729,495 B2
- Safety barricade system for use with metal grate flooring28 Apr 2026US 12,612,749 B1
- Support device comprising a post13 Feb 2024US 11,898,314 B2Valmont France
- Reflective traffic control marker4 Apr 2023US 11,619,015 B2
- System and method for anchoring bollards and curbside features25 Oct 2022US 11,479,932 B2
- Ground Anchor System and Method for Attachment27 Aug 2026US 2026/0250927 A1
- Sign support structure16 Jul 2026US 2026/0201659 A1
- Break resistant pivotable sign base27 Nov 2025US 2025/0361686 A1Lyle Signs, LLC
- Concrete sign dart25 Sep 2025US 2025/0297435 A1
- High energy impact absorbing post25 Sep 2025US 2025/0297437 A1Boplan BV
Most cited
By later US patents
- Roof mount124US 6,526,701 B2Vermont Slate & Copper Services, Inc. · 2003
- Breakaway sign post coupling95US 4,926,592 AUnistrut International Corp. · 1990
- Lighting bollard for use in an urban environment69US 4,438,484 AUrban Systems Streetscape, Inc. · 1984
- Mounting base for highway markers61US 5,197,819 AFlexstake, Inc. · 1993
- Replaceable guide post48US 4,269,534 A1981