C04B 20/06
Expanding clay, perlite, vermiculite or like granular materials
C04B20/06 (Expanding clay, perlite, vermiculite or like granular materials) appears on 114 US grants and 80 published applications in this corpus.
Search patents in C04B- Granted patents
- 114
- Published applications
- 80
- Assignees
- 89
- Inventors
- 247
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 4 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 5 |
| 2012 | 3 | 4 |
| 2013 | 0 | 4 |
| 2014 | 3 | 3 |
| 2015 | 2 | 3 |
| 2016 | 1 | 5 |
| 2017 | 4 | 5 |
| 2018 | 3 | 8 |
| 2019 | 7 | 4 |
| 2020 | 3 | 5 |
| 2021 | 1 | 4 |
| 2022 | 2 | 4 |
| 2023 | 3 | 6 |
| 2024 | 8 | 5 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Expandable silica particles and methods for making and using the same17 Mar 2026US 12,577,150 B2Valunor AG
- Secondary aluminum ash for concrete and treatment method thereof6 Jan 2026US 12,515,988 B2Guangdong Zhidao Advanced Civil Engineering Materials Technology Research Co., Ltd.
- Method of manufacturing inorganic binder by reduction furnace slag and cured solid manufactured by the method16 Sep 2025US 12,415,756 B2National Cheng Kung University
- Sediment-recycling method19 Aug 2025US 12,390,845 B2
- Bitumen product25 Mar 2025US 12,258,461 B2Omya International AG
- Expandable silica particles and methods for making and using the same2 Jul 2026US 2026/0184620 A1Valunor AG
- Method for preparing lightweight aggregates9 Oct 2025US 2025/0313510 A1Seegex
- Device and method for producing supplementary cementitious materials2 Jan 2025US 2025/0002405 A1Cemgreen APS
- Sediment-recycling method14 Nov 2024US 2024/0375159 A1Yi JIM PLASTICS ENTERPRISE CO., LTD.
- Expandable silica particles and methods for making and using the same26 Sep 2024US 2024/0317638 A1Valunor AG
Most cited
By later US patents
- Ceramic spheroids having low density and high crush resistance139US 4,632,876 AMinnesota Mining and Manufacturing Company · 1986
- Osteogenic proteins129US 5,266,683 AStryker Corporation · 1993
- Composite graphite sheets113US 4,234,638 ANippon Carbon Co., Ltd. · 1980
- Process for manufacturing a lightweight refractory product45US 4,307,051 ACawoods Refractories Limited · 1981
- Lightweight, reduced density fire rated gypsum panels41US 8,323,785 B2United States Gypsum Company · 2012