C04B 18/146
Silica fume
Official title: {Silica fume}
C04B18/146 (Silica fume) appears on 145 US grants and 183 published applications in this corpus.
Search patents in C04B- Granted patents
- 145
- Published applications
- 183
- Assignees
- 143
- Inventors
- 595
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 0 |
| 2010 | 3 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 4 |
| 2016 | 4 | 2 |
| 2017 | 4 | 8 |
| 2018 | 10 | 14 |
| 2019 | 4 | 15 |
| 2020 | 18 | 15 |
| 2021 | 6 | 13 |
| 2022 | 7 | 14 |
| 2023 | 16 | 20 |
| 2024 | 14 | 27 |
| 2025 | 15 | 19 |
| 2026 | 10 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Binder for an agglomeration process8 Sep 2026US 12,729,161 B2Mintek
- Cement system for CO2 injection and sequestration in mafic/ultramafic rock and method of use8 Sep 2026US 12,729,607 B2Protostar Group Ltd.
- Cementitious binders for geopolymer, geopolymers, and uses thereof4 Aug 2026US 12,698,236 B2Sika Technology AG
- Reinforced composite materials, and methods of making the same7 Jul 2026US 12,674,320 B2The Penn State Research Foundation
- Compositions of steel-microfiber reinforced ultra high performance concrete (UHPC) using recycled glass powder and processes for making the same30 Jun 2026US 12,668,540 B2Integrated Composite Construction Systems, LLC
- Cementitous compositions for reducing efflorescence8 Oct 2026US 2026/0308051 A1Tremco Cpg Inc.
- Composition and treatment method thereof for 3d pringting material8 Oct 2026US 2026/0308063 A1Nano and Advanced Materials Institute Limited
- High Tensile Strength Cementitious Matrix For Use In FRCM Systems17 Sep 2026US 2026/0274749 A1Universite Laval
- Expanded clay aggregate and method of preparing the same10 Sep 2026US 2026/0265134 A1Wuhan University of Technology
- Heavy-metal-reduced post-industrial waste in cementitious materials and methods of making and using thereof27 Aug 2026US 2026/0250194 A1William Marsh Rice University
Most cited
By later US patents
- Shaped article and composite material and method for producing same208US 4,588,443 AAktieselskabet Aalborg Pottland-Cement-Fabrik · 1986
- Process for forming a light-weight aggregate146US 4,741,782 AResource Technology, Inc. · 1988
- Light-weight aggregate129US 4,624,711 AResource Technology, Inc. · 1986
- Method of producing light weight cement for use of cementation of oil and gas wells44US 4,385,935 AElkem a/s · 1983
- Colloidal silica composition25US 7,544,726 B2Akzo Nobel N. V. · 2009