E04C 2/425
Made of perforated bars
Official title: {made of perforated bars}
E04C2/425 (Made of perforated bars) appears on 39 US grants and 18 published applications in this corpus.
Search patents in E04C- Granted patents
- 39
- Published applications
- 18
- Assignees
- 21
- Inventors
- 48
- Latest grant
- 22 Sep 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 2 | 3 |
| 2012 | 3 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Removable wall panel for portable electrical buildings22 Sep 2020US 10,781,585 B2Quality Electrical Systems, Inc.
- Decorative grating and method of manufacturing the same21 Nov 2017US 9,822,494 B1Ohio Gratings, Inc.
- Beam reinforcing structure4 Jul 2017US 9,695,591 B2Senqcia Corporation
- Grating system with enhanced see-through characteristics26 Jun 2012US 8,205,409 B2Ohio Gratings, Inc.
- Grating system forvehicular and pedestrian traffic28 Feb 2012US 8,122,674 B2Ohio Gratings, Inc.
- Method of forming a grating having variable height transverse bars23 Jul 2026US 2026/0210493 A1Ohio Gratings, Inc.
- Removable wall panel for portable electrical buildings10 Jul 2025US 2025/0223794 A1Quality Electrical Systems, Inc.
- Removable wall panel for portable electrical buildings12 Dec 2019US 2019/0376288 A1Quality Electrical Systems, Inc.
- Beam reinforcing structure7 Jan 2016US 2016/0002926 A1Senqcia Corporation
- Platform grating10 Jul 2014US 2014/0191537 A1Caterpillar Inc.
Most cited
By later US patents
- Method of manufacturing a grating constructed of resin bonded fibers39US 4,244,768 A1981
- Lock rod system for flooring grating and method for assembling same37US 4,522,009 A1985
- Floor mat having interchangeable design elements25US 4,109,439 AThe Airomat Corporation · 1978
- Weldless grating for bridge decks25US 5,463,786 AGrate-Lok Co., Inc. · 1995
- Automated weldless inter-locking grating assembly for bridge decks and like structures23US 6,018,833 AStargrate Systems, Inc. · 2000