E04G 21/3242
Using clamps
Official title: {using clamps}
E04G21/3242 (Using clamps) appears on 53 US grants and 51 published applications in this corpus.
Search patents in E04G- Granted patents
- 53
- Published applications
- 51
- Assignees
- 35
- Inventors
- 106
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 2 | 1 |
| 2006 | 0 | 2 |
| 2007 | 2 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 1 | 5 |
| 2015 | 0 | 1 |
| 2016 | 4 | 4 |
| 2017 | 4 | 1 |
| 2018 | 2 | 4 |
| 2019 | 4 | 4 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 4 | 4 |
| 2023 | 1 | 3 |
| 2024 | 1 | 2 |
| 2025 | 2 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Roof edge safety system2 Dec 2025US 12,486,682 B2Scepaniak IP Holdings, LLC
- Clamp assembly for fall protection reinforcement post10 Jun 2025US 12,325,113 B2
- Fall protection system for electrical transformers16 Apr 2024US 11,959,291 B2Consolidated Edison Company of New York, Inc.
- Guardrail mounting bracket8 Aug 2023US 11,719,009 B2
- Guardrail mounting bracket for staircase15 Nov 2022US 11,499,327 B1
- Deck post for multi-storey building construction8 Oct 2026US 2026/0308927 A1
- Clamp assembly for fall protection reinforcement post4 Sep 2025US 2025/0276427 A1
- Grids and Posts with Adjustable Claws for the Assembly of Guardrails in Construction Work29 May 2025US 2025/0172006 A1MPM Locações Importação E Exportação Ltda.
- Clamp assembly for fall protection reinforcement post15 May 2025US 2025/0153312 A1
- Guardrail apparatus and system10 Oct 2024US 2024/0337117 A1
Most cited
By later US patents
- Frame erection safety system and components thereof66US 5,029,670 A1991
- Safety device for steelworkers64US 5,711,397 A1998
- Adaptable safety rail system for flat roofs and parapets59US 6,038,829 A2000
- Removable guard rail stanchion apparatus57US 3,995,833 A1976
- Safety stanchions47US 6,173,809 B1MC Enterprises International, Inc. · 2001