E04C 2/26
Composed of materials covered by two or more of groups e04c2/04, e04c2/08
Official title: composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups {(of cement and mineral fibres E04C2/04)}
E04C2/26 (Composed of materials covered by two or more of groups e04c2/04, e04c2/08) appears on 1,557 US grants and 1,662 published applications in this corpus.
Search patents in E04C- Granted patents
- 1,557
- Published applications
- 1,662
- Assignees
- 927
- Inventors
- 2,764
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 21 | 0 |
| 1978 | 24 | 0 |
| 1979 | 10 | 0 |
| 1980 | 16 | 0 |
| 1981 | 19 | 0 |
| 1982 | 19 | 0 |
| 1983 | 15 | 0 |
| 1984 | 16 | 0 |
| 1985 | 7 | 0 |
| 1986 | 16 | 0 |
| 1987 | 14 | 0 |
| 1988 | 15 | 0 |
| 1989 | 15 | 0 |
| 1990 | 23 | 0 |
| 1991 | 11 | 0 |
| 1992 | 16 | 0 |
| 1993 | 23 | 0 |
| 1994 | 29 | 0 |
| 1995 | 21 | 0 |
| 1996 | 22 | 0 |
| 1997 | 25 | 0 |
| 1998 | 33 | 0 |
| 1999 | 20 | 0 |
| 2000 | 22 | 0 |
| 2001 | 37 | 12 |
| 2002 | 18 | 26 |
| 2003 | 19 | 33 |
| 2004 | 26 | 50 |
| 2005 | 16 | 52 |
| 2006 | 19 | 32 |
| 2007 | 12 | 43 |
| 2008 | 13 | 46 |
| 2009 | 13 | 49 |
| 2010 | 22 | 47 |
| 2011 | 22 | 53 |
| 2012 | 29 | 36 |
| 2013 | 39 | 49 |
| 2014 | 41 | 83 |
| 2015 | 51 | 83 |
| 2016 | 59 | 98 |
| 2017 | 59 | 106 |
| 2018 | 63 | 86 |
| 2019 | 78 | 95 |
| 2020 | 95 | 112 |
| 2021 | 55 | 94 |
| 2022 | 62 | 100 |
| 2023 | 77 | 78 |
| 2024 | 67 | 79 |
| 2025 | 69 | 61 |
| 2026 | 24 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Structural shear tie connector for sandwiched insulated concrete and sandwiched insulated concrete walls/panels15 Sep 2026US 12,735,893 B1
- Construction panel8 Sep 2026US D1,147,463 S1Amp IP LLC · Design
- Ultra stable cementitious material formulation, process for its making, and ultra stable tile backer board formulation and processes for its making1 Sep 2026US 12,726,151 B2Triton MgO Products, LLC
- Multi-material sheathing system with sustained thermal insulation performance11 Aug 2026US 12,703,778 B2Owens Corning Intellectual Capital, LLC
- Flame retardant clear coatings for building panels4 Aug 2026US 12,698,628 B2AWI Licensing LLC
- Fire-Resistant Building Panels8 Oct 2026US 2026/0308909 A1Envirograf Ltd
- Wall Building System8 Oct 2026US 2026/0308911 A1
- A Foam-Based, Structural Construction Panel1 Oct 2026US 2026/0295907 A1
- Composite panel element1 Oct 2026US 2026/0296977 A1
- Exterior building augmentation system1 Oct 2026US 2026/0297944 A1Cover Technologies, Inc.
Most cited
By later US patents
- Interlocking panels having flats for increased versatility394US 5,502,939 AElite Panel Products · 1996
- Splines for joining panels387US 5,950,389 A1999
- Sandwich elements in the form of slabs, shells and the like383US 5,348,778 ABayer Aktiengesellschaft · 1994
- Construction panel and method347US 6,314,701 B12001
- Building panel and method341US 5,349,796 AStructural Panels, Inc. · 1994