C04B 2111/28
Fire resistance, i.e. materials resistant to accidental fires or high temperatures
C04B2111/28 (Fire resistance, i.e. materials resistant to accidental fires or high temperatures) appears on 738 US grants and 943 published applications in this corpus.
Search patents in C04B- Granted patents
- 738
- Published applications
- 943
- Assignees
- 560
- Inventors
- 2,105
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 0 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 10 | 0 |
| 1990 | 2 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 11 | 0 |
| 1996 | 12 | 0 |
| 1997 | 12 | 0 |
| 1998 | 11 | 0 |
| 1999 | 11 | 0 |
| 2000 | 12 | 0 |
| 2001 | 14 | 5 |
| 2002 | 12 | 15 |
| 2003 | 7 | 25 |
| 2004 | 14 | 30 |
| 2005 | 8 | 23 |
| 2006 | 7 | 20 |
| 2007 | 6 | 31 |
| 2008 | 13 | 21 |
| 2009 | 8 | 26 |
| 2010 | 25 | 19 |
| 2011 | 19 | 32 |
| 2012 | 17 | 36 |
| 2013 | 23 | 39 |
| 2014 | 26 | 30 |
| 2015 | 22 | 52 |
| 2016 | 20 | 33 |
| 2017 | 29 | 53 |
| 2018 | 28 | 45 |
| 2019 | 47 | 63 |
| 2020 | 36 | 48 |
| 2021 | 34 | 49 |
| 2022 | 30 | 68 |
| 2023 | 39 | 48 |
| 2024 | 40 | 59 |
| 2025 | 33 | 47 |
| 2026 | 13 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Light weight ceramic aggregates made by agglomerating ceramic fibers22 Sep 2026US 12,741,908 B2Unifrax I LLC
- Heat and fire resistant geopolymer materials21 Jul 2026US 12,686,637 B2
- Gypsum based building material2 Jun 2026US 12,643,823 B2Knauf Gips KG
- Building materials and components and methods of making the same2 Jun 2026US 12,643,824 B2
- Agglomerated stone for use in an electric furnace12 May 2026US 12,624,405 B2ThyssenKrupp Steel Europe AG
- Recycled Drywall Products and Systems8 Oct 2026US 2026/0308057 A1Qualico Developments West Ltd.
- Process for obtaining fibre-reinforced composite materials8 Oct 2026US 2026/0308065 A1Aeronautical Service S.R.L.
- Intumescent sheet used in an electric vehicle battery for thermal runaway management3 Sep 2026US 2026/0260988 A1Aerogel R&D Pte. Ltd.
- Cracking resistant asphalt binders including high viscosity vacuum tower bottoms material and at least one of a heavy vacuum gas oil or a biomaterial, and related methods20 Aug 2026US 2026/0242285 A1Marathon Petroleum Company LP
- Cracking resistant asphalt binders including hard asphalt, and related methods20 Aug 2026US 2026/0242286 A1Marathon Petroleum Company LP
Most cited
By later US patents
- Fire door core146US 4,159,302 AGeorgia-Pacific Corporation · 1979
- Fire barrier coating and fire barrier plywood136US 5,130,184 APyrotite Corporation · 1992
- Gypsum fiberboard door frame125US 5,347,780 AGeorgia-Pacific Corporation · 1994
- Use of high temperature insulation for ceramic matrix composites in gas turbines123US 6,197,424 B1Siemens Westinghouse Power Corporation · 2001
- Composite building material118US 6,941,720 B2James Hardie International Finance B. V. · 2005