E04B 1/4121
With internal threads or non-adjustable captive nuts
Official title: {with internal threads or non-adjustable captive nuts}
E04B1/4121 (With internal threads or non-adjustable captive nuts) appears on 165 US grants and 164 published applications in this corpus.
Search patents in E04B- Granted patents
- 165
- Published applications
- 164
- Assignees
- 63
- Inventors
- 229
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 2 |
| 2006 | 1 | 5 |
| 2007 | 3 | 1 |
| 2008 | 1 | 4 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 5 |
| 2012 | 2 | 4 |
| 2013 | 1 | 6 |
| 2014 | 7 | 8 |
| 2015 | 11 | 13 |
| 2016 | 11 | 8 |
| 2017 | 5 | 15 |
| 2018 | 10 | 11 |
| 2019 | 12 | 10 |
| 2020 | 14 | 14 |
| 2021 | 4 | 9 |
| 2022 | 13 | 10 |
| 2023 | 9 | 9 |
| 2024 | 6 | 10 |
| 2025 | 5 | 6 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Embed plate assemblies for concrete building construction23 Jul 2026US 2026/0210107 A1
- Anchor for connecting to a rod23 Jul 2026US 2026/0210108 A1Cetres Holdings, LLC
- Insert9 Jul 2026US 2026/0193882 A1Japan Life Co., Ltd.
- Concrete anchor bodies and plugs7 May 2026US 2026/0125896 A1Cetres Holdings, LLC
Most cited
By later US patents
- Threaded anchor for poured concrete metal deck floors and wood frame floors70US 6,240,697 B12001
- High performance, reinforced insulated precast concrete and tilt-up concrete structures and methods of making same65US 8,844,227 B12014
- Variable embedment anchor and method59US 5,653,078 AERICO International Corporation · 1997
- Concrete insert for attaching utility hangers to a structure57US 5,205,690 A1993
- Grout in place fastener system49US 4,642,964 A1987