E04D 3/36
Connecting
Official title: Connecting; Fastening
E04D3/36 (Connecting) appears on 948 US grants and 496 published applications in this corpus.
Search patents in E04D- Granted patents
- 948
- Published applications
- 496
- Assignees
- 386
- Inventors
- 1,165
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 18 | 0 |
| 1978 | 27 | 0 |
| 1979 | 15 | 0 |
| 1980 | 18 | 0 |
| 1981 | 13 | 0 |
| 1982 | 15 | 0 |
| 1983 | 24 | 0 |
| 1984 | 23 | 0 |
| 1985 | 25 | 0 |
| 1986 | 26 | 0 |
| 1987 | 27 | 0 |
| 1988 | 23 | 0 |
| 1989 | 23 | 0 |
| 1990 | 23 | 0 |
| 1991 | 30 | 0 |
| 1992 | 25 | 0 |
| 1993 | 21 | 0 |
| 1994 | 14 | 0 |
| 1995 | 18 | 0 |
| 1996 | 21 | 0 |
| 1997 | 20 | 0 |
| 1998 | 23 | 0 |
| 1999 | 21 | 0 |
| 2000 | 11 | 0 |
| 2001 | 24 | 4 |
| 2002 | 7 | 9 |
| 2003 | 7 | 19 |
| 2004 | 9 | 17 |
| 2005 | 13 | 24 |
| 2006 | 5 | 19 |
| 2007 | 6 | 12 |
| 2008 | 4 | 17 |
| 2009 | 11 | 20 |
| 2010 | 16 | 22 |
| 2011 | 18 | 21 |
| 2012 | 15 | 20 |
| 2013 | 17 | 19 |
| 2014 | 33 | 30 |
| 2015 | 28 | 18 |
| 2016 | 15 | 25 |
| 2017 | 20 | 24 |
| 2018 | 18 | 23 |
| 2019 | 22 | 24 |
| 2020 | 22 | 20 |
| 2021 | 20 | 32 |
| 2022 | 26 | 15 |
| 2023 | 28 | 29 |
| 2024 | 17 | 15 |
| 2025 | 15 | 7 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04D 3/361By specially-profiled marginal portions of the slabs or sheets411
- E04D 3/3601Of roof covering supported by the roof structure with interposition of a232
- E04D 3/366By closing the space between the slabs or sheets by gutters, bulges185
- E04D 3/365By simple overlapping of the marginal portions with use of separate connecting109
- E04D 3/3608For double roof covering or overroofing107
- E04D 3/3605Of roof covering supported directly by the roof structure79
- E04D 3/3607The fastening means comprising spacer means adapted to the shape of the54
- E04D 3/368By forcing together the marginal portions of adjacent slabs or sheets14
All 9 subgroupsShow fewer
Recent patents
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- Steep slope roofing panel system and method23 Jun 2026US 12,662,812 B2Bmic LLC
- Integrated roof system with engineered wood9 Jun 2026US 12,650,018 B2Louisiana-Pacific Corp.
- Sandwich panel and building envelope thereof27 Aug 2026US 2026/0250955 A1
- Self-Drilling Fastener Having Buttress Threads, Hex Flange Head, Angled Shoulder, and Sealing Washer20 Aug 2026US 2026/0243291 A1Enstall US, Inc.
- Sheet of covering material, use of said sheet, building structure comprising said sheet and method for manufacturing said sheet6 Aug 2026US 2026/0226317 A1Redeahold Apeldoorn B.V.
- Ventilated structural panels and method of construction with ventilated structural panels6 Aug 2026US 2026/0226740 A1
- Roof attachment clamp25 Jun 2026US 2026/0176878 A1Homecrest Roofing
Most cited
By later US patents
- Tongue-groove connection326US 4,100,710 AHoesch Werke Aktiengesellschaft · 1978
- Apparatus and method for mounting photovoltaic power generating systems on buildings283US 7,435,897 B2Schott Solar AG · 2008
- Roofing fastener270US 4,860,513 A1989
- Solar cell module panel263US 5,409,549 ACanon Kabushiki Kaisha · 1995
- Photovoltaic roof system248US 5,232,518 AUnited Solar Systems Corporation · 1993