E04B 7/20
Roofs consisting of self-supporting slabs
Official title: Roofs consisting of self-supporting slabs, e.g. able to be loaded
E04B7/20 (Roofs consisting of self-supporting slabs) appears on 375 US grants and 334 published applications in this corpus.
Search patents in E04B- Granted patents
- 375
- Published applications
- 334
- Assignees
- 183
- Inventors
- 576
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 11 | 0 |
| 2001 | 14 | 1 |
| 2002 | 6 | 7 |
| 2003 | 3 | 11 |
| 2004 | 5 | 8 |
| 2005 | 4 | 19 |
| 2006 | 3 | 5 |
| 2007 | 4 | 12 |
| 2008 | 5 | 18 |
| 2009 | 2 | 13 |
| 2010 | 16 | 15 |
| 2011 | 13 | 18 |
| 2012 | 8 | 9 |
| 2013 | 13 | 11 |
| 2014 | 23 | 21 |
| 2015 | 12 | 10 |
| 2016 | 8 | 24 |
| 2017 | 14 | 10 |
| 2018 | 13 | 17 |
| 2019 | 11 | 14 |
| 2020 | 16 | 21 |
| 2021 | 10 | 18 |
| 2022 | 11 | 23 |
| 2023 | 16 | 16 |
| 2024 | 9 | 5 |
| 2025 | 8 | 6 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Panelized structural wall, floor, and roof panel30 Jun 2026US 12,668,970 B1Cover Technologies, Inc.
- Building system12 May 2026US 12,624,541 B2
- Modular wheelchair ramp canopy21 Apr 2026US 12,607,012 B1
- Roof curtain wall structure and its construction method24 Mar 2026US 12,584,310 B2Beijing Institute of Architectural Design
- Wall building system10 Mar 2026US 12,571,211 B1
- Roof panel and building provided with said roof panel6 Aug 2026US 2026/0226745 A1Sekisui House, Ltd.
- Roof curtain wall structure and its construction method1 Jan 2026US 2026/0002359 A1Beijing Institute of Architectural Design
- Structural units for building construction and methods of use thereof27 Nov 2025US 2025/0361719 A1New Village Initiative LLC
- A roof element and a shelter made from same2 Oct 2025US 2025/0305285 A1Wee.no AS
- Structural Composite Wall and Building System8 May 2025US 2025/0146276 A1
Most cited
By later US patents
- Building panel and method341US 5,349,796 AStructural Panels, Inc. · 1994
- Modular building construction and components thereof166US 6,256,960 B12001
- Energy efficient building system158US 4,774,794 A1988
- Thermoplastic structural system and components therefor and method of making same138US 5,706,620 ARoyal Building Systems (CDN) Limited · 1998
- Building structure and method of use124US 5,353,560 AHeydon Building Systems International, Limited · 1994