E04C 2/04
Of concrete or other stone-like material
Official title: of concrete or other stone-like material; of asbestos cement; {of cement and other mineral fibres}(E04C2/26 takes precedence; material or manufacture B28, C04)
E04C2/04 (Of concrete or other stone-like material) appears on 1,270 US grants and 1,417 published applications in this corpus.
Search patents in E04C- Granted patents
- 1,270
- Published applications
- 1,417
- Assignees
- 600
- Inventors
- 2,150
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 24 | 0 |
| 1978 | 12 | 0 |
| 1979 | 8 | 0 |
| 1980 | 13 | 0 |
| 1981 | 17 | 0 |
| 1982 | 14 | 0 |
| 1983 | 19 | 0 |
| 1984 | 10 | 0 |
| 1985 | 12 | 0 |
| 1986 | 13 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 12 | 0 |
| 1990 | 14 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 15 | 0 |
| 1997 | 12 | 0 |
| 1998 | 16 | 0 |
| 1999 | 19 | 0 |
| 2000 | 21 | 0 |
| 2001 | 31 | 13 |
| 2002 | 24 | 47 |
| 2003 | 23 | 46 |
| 2004 | 34 | 63 |
| 2005 | 23 | 37 |
| 2006 | 20 | 43 |
| 2007 | 17 | 41 |
| 2008 | 10 | 46 |
| 2009 | 11 | 64 |
| 2010 | 40 | 40 |
| 2011 | 24 | 47 |
| 2012 | 33 | 51 |
| 2013 | 37 | 37 |
| 2014 | 43 | 68 |
| 2015 | 38 | 71 |
| 2016 | 40 | 67 |
| 2017 | 44 | 81 |
| 2018 | 44 | 63 |
| 2019 | 57 | 83 |
| 2020 | 70 | 77 |
| 2021 | 50 | 71 |
| 2022 | 44 | 53 |
| 2023 | 56 | 56 |
| 2024 | 51 | 63 |
| 2025 | 50 | 49 |
| 2026 | 18 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Foundation systems29 Sep 2026US 12,747,586 B2GroundFORCE IP, LLC
- Air and water barrier building panels15 Sep 2026US 12,734,724 B2Gold Bond Building Products, LLC
- 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
- Cementitious sheathing panel with moisture sensor and system and method for detecting moisture within structure25 Aug 2026US 12,718,048 B2United States Gypsum Company
- Prefabricated deck, wall, and roof systems4 Aug 2026US 12,698,631 B1MFI Real Estate, LLC
- Hardened body of hydraulic composition8 Oct 2026US 2026/0308056 A1Kuraray Co., Ltd.
- Gypsum Board Including a Gypsum Core with Crystals Having an Enhanced Aspect Ratio1 Oct 2026US 2026/0296963 A1Gold Bond Building Products, LLC
- Anti-ballistic panels made from magnesia based cement and system comprising same1 Oct 2026US 2026/0298587 A1Ubiq Technology Pty Ltd
- System and method for producing a drywall board with tapered sides24 Sep 2026US 2026/0286696 A1
- Inorganic bearing surface material and bearing wall10 Sep 2026US 2026/0266050 A1Yoshino Gypsum Co., Ltd.
Most cited
By later US patents
- Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it194US 6,342,284 B12002
- Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it150US 6,632,550 B1United States Gypsum Company · 2003
- Use of fibrous mat-faced gypsum board in exterior finishing systems for buildings142US 4,647,496 AGeorgia-Pacific Corporation · 1987
- Interlocking brick or building block and walls constructed therefrom134US 3,936,987 A1976
- Multi-layer plasterboard121US 3,993,822 AGebr. Knauf Westdeutsche Gipswerke · 1976