E04D 11/02
Build-up roofs, i.e. consisting of two or more layers bonded together in
Official title: Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition (gravelling of flat roofs E04D7/00; venting or ventilation E04D13/17)
E04D11/02 (Build-up roofs, i.e. consisting of two or more layers bonded together in) appears on 338 US grants and 313 published applications in this corpus.
Search patents in E04D- Granted patents
- 338
- Published applications
- 313
- Assignees
- 151
- Inventors
- 594
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 11 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 11 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 2 |
| 2002 | 6 | 1 |
| 2003 | 1 | 7 |
| 2004 | 2 | 4 |
| 2005 | 3 | 7 |
| 2006 | 2 | 11 |
| 2007 | 3 | 8 |
| 2008 | 1 | 8 |
| 2009 | 5 | 10 |
| 2010 | 10 | 5 |
| 2011 | 3 | 7 |
| 2012 | 5 | 4 |
| 2013 | 4 | 5 |
| 2014 | 9 | 9 |
| 2015 | 5 | 11 |
| 2016 | 7 | 18 |
| 2017 | 10 | 19 |
| 2018 | 12 | 16 |
| 2019 | 18 | 26 |
| 2020 | 17 | 16 |
| 2021 | 17 | 25 |
| 2022 | 10 | 25 |
| 2023 | 11 | 18 |
| 2024 | 21 | 30 |
| 2025 | 18 | 15 |
| 2026 | 9 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermoplastic roofing membranes for fully-adhered roofing systems8 Sep 2026US 12,729,538 B2Amrize Technology Switzerland LLC
- Roofing system18 Aug 2026US 12,709,896 B2Bmic LLC
- Insulated composite boards21 Jul 2026US 12,686,201 B2Continuus Materials Intellectual Property, LLC
- Cover board with honeycomb layer21 Jul 2026US 12,687,021 B2Bmic LLC
- Mineral fiber product28 Apr 2026US 12,612,782 B2Rockwool A/S
- Deck plate and dry roof8 Oct 2026US 2026/0308914 A1Jfe Metal Products Corporation
- Roof system with adhered construction boards13 Aug 2026US 2026/0234935 A1
- Mineral fiber product6 Aug 2026US 2026/0226734 A1Rockwool A/S
- Systems and methods for improved material sample analysis and quality control7 May 2026US 2026/0125578 A1Decision Tree, LLC
- Structure for preventing rain leakage in tree house9 Apr 2026US 2026/0098420 A1Treeful Inc.
Most cited
By later US patents
- Solar cell roofing assembly143US 5,316,592 A1994
- Use of fibrous mat-faced gypsum board in exterior finishing systems for buildings142US 4,647,496 AGeorgia-Pacific Corporation · 1987
- Fibrous mat-faced gypsum board107US 4,810,569 AGeorgia-Pacific Corporation · 1989
- Gypsum board and systems containing same92US 5,644,880 AGeorgia-Pacific Corporation · 1997
- Fibrous mat-faced gypsum board in exterior and interior finishing systems for buildings85US 5,220,762 AGeorgia-Pacific Corporation · 1993