E04D 3/3608
For double roof covering or overroofing
Official title: {for double roof covering or overroofing}
E04D3/3608 (For double roof covering or overroofing) appears on 107 US grants and 46 published applications in this corpus.
Search patents in E04D- Granted patents
- 107
- Published applications
- 46
- Assignees
- 44
- Inventors
- 119
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 3 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 5 | 1 |
| 2012 | 1 | 4 |
| 2013 | 2 | 0 |
| 2014 | 1 | 2 |
| 2015 | 3 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 3 |
| 2018 | 2 | 3 |
| 2019 | 1 | 7 |
| 2020 | 2 | 1 |
| 2021 | 4 | 5 |
| 2022 | 5 | 0 |
| 2023 | 6 | 2 |
| 2024 | 0 | 2 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ventilated structural panels and method of construction with ventilated structural panels30 Dec 2025US 12,509,881 B2
- Solar panel roof1 Apr 2025US 12,267,038 B2Raymond Solar AB
- Spacer for roof and roof comprising same4 Mar 2025US 12,241,251 B2
- System for re-roofing asphalt shingled roofs24 Oct 2023US 11,795,693 B2
- Reinforced notched sub-purlin19 Sep 2023US 11,761,212 B2Roof Hugger, LLC
- Ventilated structural panels and method of construction with ventilated structural panels6 Aug 2026US 2026/0226740 A1
- Elevated roof29 Aug 2024US 2024/0287805 A1
- Spacer for roof and roof comprising same29 Feb 2024US 2024/0068236 A1
- Solar panel roof20 Jul 2023US 2023/0231509 A1Gruppsol AB
- Reinforced notched sub-purlin2 Feb 2023US 2023/0036567 A1Roof Hugger, LLC
Most cited
By later US patents
- Apparatus and method for mounting photovoltaic power generating systems on buildings283US 7,435,897 B2Schott Solar AG · 2008
- Photovoltaic module and a photovoltaic apparatus243US 5,571,338 ASanyo Electric Co., Ltd. · 1996
- Multi-piece clamp for standing seams115US 7,013,612 B22006
- Multi-piece clamp for standing seams110US 7,100,338 B2Caught Fish Enterprises, LLC · 2006
- System for mounting building panels allowing bi-axial freedom of movement106US 5,743,063 ANon Compact, Inc. · 1998