C04B 2111/12
Absence of mineral fibres
Official title: Absence of mineral fibres, e.g. asbestos
C04B2111/12 (Absence of mineral fibres) appears on 53 US grants and 23 published applications in this corpus.
Search patents in C04B- Granted patents
- 53
- Published applications
- 23
- Assignees
- 42
- Inventors
- 100
- Latest grant
- 16 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 3 |
| 2003 | 1 | 4 |
| 2004 | 2 | 2 |
| 2005 | 3 | 2 |
| 2006 | 1 | 3 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Advanced multi-functional asbestos free thermal insulating material and the process for preparation thereof16 Aug 2022US 11,414,349 B2Council of Scientific and Industrial Research
- High noise reduction coefficient, low density acoustical tiles30 Jun 2020US 10,696,594 B2USG Interiors, Inc.
- Lightweight foam concrete10 Apr 2018US 9,938,199 B1King Fahd University of Petroleum and Minerals
- Lightweight foam concrete with elemental sulfur5 Dec 2017US 9,834,477 B1King Fahd University of Petroleum and Minerals
- Silica-based nonflammable material for replacing asbestos and method for preparing same26 Aug 2014US 8,815,758 B2
- Improved geopolymeric friction material, in particular for manufacturing brake pads, and associated method and brake pad3 Sep 2026US 2026/0258850 A1ITT Italia S.r.l.
- Fire resistant gypsum board comprising silica fume and related methods3 Apr 2025US 2025/0109069 A1United States Gypsum Company
- Advanced multi-functional asbestos free thermal insulating material and the process for preparation thereof25 Feb 2021US 2021/0053876 A1Council of Scientific and Industrial Research
- Fire Protection Boards And Structures Protected By Such Boards19 Dec 2019US 2019/0381344 A1Thermal Ceramics De France
- High noise reduction coefficient, low density acoustical tiles14 Feb 2019US 2019/0047914 A1USG Interiors, Inc.
Most cited
By later US patents
- Gypsum fiberboard door frame125US 5,347,780 AGeorgia-Pacific Corporation · 1994
- Building board102US 4,132,555 ACape Boards & Panels Ltd. · 1979
- Cement composition for extrusion97US 5,047,086 AShin-Etsu Chemical Co., Ltd. · 1991
- Fire-resistant gypsum building materials70US 5,945,208 AG-P Gypsum Corporation · 1999
- Mineral wool-free acoustical tile composition68US 5,395,438 AUSG Interiors, Inc. · 1995